338602

Appears in sequences

• Number of non-equivalent (mod D_3) ways to choose three points in an n X n X n triangular grid so that they do not form a 2 X 2 X 2 subtriangle.at n=19A237530
• Decimal representation of the middle column of the "Rule 41" elementary cellular automaton starting with a single ON (black) cell.at n=18A266613