77517

Appears in sequences

• Shallow diagonal sums of the triangle k!*Stirling2(n,k): a(n) = Sum_{k=0..floor(n/2)} T(n-k,k) where T is A019538.at n=12A105795
• a(n) = 9*a(n-1) + 6*a(n-2); a(0)=0, a(1)=1.at n=6A153191