/usr/share/k3d/lsystem/lobster-form4.ls is in k3d-data 0.8.0.3-3build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | # --- L-System Parser/Mutator --- Lj Lapre ----------------------------------
10
10
80
[c|H]C[ccc>>>>>>>>>[GL]]
C=FR-C
R=[cc^^^^^^^^^B][cc&&&&&&&&&B]
B=[|H]
L=[cc{--z++z++z--|--z++z++z}]
H=[^^^D]%[^^^D]>>>H
S=Z!S
G=:Z++!G
D=F!^+F^+;'[&&&L]D
@
|