761403

Appears in sequences

• a(n) = Sum_{k <= n/2 } binomial(n-2k, 3k).at n=28A137356
• Number of (n+1) X (1+1) arrays of permutations of 0..n*2+1 with each element having directed index change -2,0 -1,0 0,-1 or 1,1.at n=40A264622
• Number of compositions of 5*n-1 into parts 3 and 5.at n=16A369846
• a(n) = Sum_{k=0..floor(2*n/5)} binomial(2*n-2*k,3*k).at n=14A392401
• a(n) = Sum_{k=0..floor(2*n/3)} binomial(2*k,2*n-3*k).at n=21A392428