785460
domain: N
Appears in sequences
- a(n) = 3*(n-2)*(n-3)*(3*n^2-3*n-8)/2.at n=20A064198
- a(n) = Sum_{k=0..floor(n/3)} binomial(2*n-3*k, n).at n=11A105872
- Number of n X 4 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 1 0 vertically.at n=25A208283
- a(n) = Sum_{i=0..floor(q(n)/3)} binomial(n-3*(i+1), q(n)-3*i) with q(n) = ceiling((n-3)/2).at n=22A366107