57783

Appears in sequences

• a(n) = (n+2)*(n+1)*(n^2 + 7*n - 12)/24.at n=31A014309
• a(n) = 441*n^2 - 488*n + 135.at n=11A157730
• Number of Dyck paths of semilength n such that no positive level has fewer than nine peaks.at n=22A288685