227542

Appears in sequences

• Antidiagonal sums of square table A086623.at n=15A086625
• a(n) is the number of Dyck paths of semilength n without height of peaks 0 (mod 3) and height of valleys 1 (mod 3).at n=16A152172
• Square array A(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of 1/Product_{j=0..k} (1 - j*x)^2.at n=59A383843