173740

Appears in sequences

• Number of Barlow packings with group P63mc that repeat after 2n layers.at n=18A011948
• Weight distribution of [512,46,128] Reed-Muller (or RM) code.at n=8A147314
• Weight distribution of [512,46,128] Reed-Muller (or RM) code.at n=24A147314
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 129", based on the 5-celled von Neumann neighborhood.at n=8A270218
• a(n) = Sum_{k=1..n} (k^2*floor(k/2)).at n=33A285188