258336

Appears in sequences

• Number of 3 X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 1 vertically.at n=12A207590
• a(n) = n + 2*binomial(n,2) + 3*binomial(n,3) + 4*binomial(n,4).at n=36A361099