40695

Appears in sequences

• Number of n-step self-avoiding walks on a cubic lattice with a first step along the positive x, y, or z axis.at n=6A002902
• Number of 0..3 arrays x(0..n-1) of n elements with each no smaller than the sum of its three previous neighbors modulo 4.at n=10A200663
• a(n) = n*A259968(n).at n=15A259969
• a(n) = n! + n!! - n - 1.at n=8A275540