This file is indexed.

/usr/share/yacas/numbers.rep/om.ys is in yacas 1.3.3-2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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// From code.ys.def:
OMDef( "BellNumber",      "yacas","BellNumber" );
OMDef( "CatalanNumber",   "yacas","CatalanNumber" );
OMDef( "DigitalRoot",     "yacas","DigitalRoot" );
OMDef( "Divisors",        "yacas","Divisors" );
OMDef( "DivisorsSum",     "yacas","DivisorsSum" );
OMDef( "Euler",           "yacas","Euler" );
OMDef( "EulerArray",      "yacas","EulerArray" );
OMDef( "Eulerian",        "yacas","Eulerian" );
OMDef( "FermatNumber",    "yacas","FermatNumber" );
OMDef( "GetPrimePower",   "yacas","GetPrimePower" );
OMDef( "HarmonicNumber",  "yacas","HarmonicNumber" );
OMDef( "IntLog",          "yacas","IntLog" );
OMDef( "IntNthRoot",      "yacas","IntNthRoot" );
OMDef( "IsAmicablePair",  "yacas","IsAmicablePair" );
OMDef( "IsCarmichaelNumber", "yacas","IsCarmichaelNumber" );
OMDef( "IsComposite",     "yacas","IsComposite" );
OMDef( "IsCoprime",       "yacas","IsCoprime" );
OMDef( "IsIrregularPrime", "yacas","IsIrregularPrime" );
OMDef( "IsPerfect",       "yacas","IsPerfect" );
OMDef( "IsPrime",         "yacas","IsPrime" );
OMDef( "IsPrimePower",    "yacas","IsPrimePower" );
OMDef( "IsQuadraticResidue", "yacas","IsQuadraticResidue" );
OMDef( "IsSmallPrime",    "yacas","IsSmallPrime" );
OMDef( "IsSquareFree",    "yacas","IsSquareFree" );
OMDef( "IsTwinPrime",     "yacas","IsTwinPrime" );
OMDef( "LegendreSymbol",  "yacas","LegendreSymbol" );
OMDef( "Moebius",         "yacas","Moebius" );
OMDef( "NextPrime",       "yacas","NextPrime" );
OMDef( "NextPseudoPrime", "yacas","NextPseudoPrime" );
OMDef( "PartitionsP",     "yacas","PartitionsP" );
OMDef( "ProductPrimesTo257", "yacas","ProductPrimesTo257" );
OMDef( "ProperDivisors",  "yacas","ProperDivisors" );
OMDef( "ProperDivisorsSum", "yacas","ProperDivisorsSum" );
OMDef( "Repunit",         "yacas","Repunit" );
OMDef( "StirlingNumber1", "yacas","StirlingNumber1" );
OMDef( "StirlingNumber2", "yacas","StirlingNumber2" );
OMDef( "Totient",         "yacas","Totient" );

// From GaussianIntegers.ys.def
OMDef( "IsGaussianUnit",    "yacas","IsGaussianUnit" );
OMDef( "IsGaussianInteger", "yacas","IsGaussianInteger" );
OMDef( "IsGaussianPrime",   "yacas","IsGaussianPrime" );
OMDef( "GaussianFactorPrime", "yacas","GaussianFactorPrime" );
OMDef( "GaussianNorm",      "yacas","GaussianNorm" );
OMDef( "GaussianMod",       "yacas","GaussianMod" );
OMDef( "GaussianFactors",   "yacas","GaussianFactors" );
OMDef( "AddGaussianFactor", "yacas","AddGaussianFactor" );
OMDef( "FactorGaussianInteger", "yacas","FactorGaussianInteger" );
OMDef( "GaussianGcd",       "yacas","GaussianGcd" );

// From nthroot.ys.def
OMDef( "NthRoot",      "yacas","NthRoot" );
OMDef( "NthRoot'Calc", "yacas","NthRoot'Calc" );
OMDef( "NthRoot'List", "yacas","NthRoot'List" );
OMDef( "NthRoot'Save", "yacas","NthRoot'Save" );
OMDef( "NthRoot'Restore", "yacas","NthRoot'Restore" );
OMDef( "NthRoot'Clear", "yacas","NthRoot'Clear" );

// From NumberTheory.ys.def
OMDef( "DivisorsList", "yacas","DivisorsList" );
OMDef( "SquareFreeDivisorsList", "yacas","SquareFreeDivisorsList" );
OMDef( "MoebiusDivisorsList",    "yacas","MoebiusDivisorsList" );
OMDef( "SumForDivisors", "yacas","SumForDivisors" );
OMDef( "RamanujanSum",   "yacas","RamanujanSum" );
OMDef( "JacobiSymbol",   "yacas","JacobiSymbol" );