a(n) = Sum_{k=0..n} Stirling2(n+k,k).

A392734

a(n) = Sum_{k=0..n} Stirling2(n+k,k).

Terms

    a(0) =1a(1) =1a(2) =8a(3) =106a(4) =2034a(5) =51325a(6) =1607640a(7) =60185328a(8) =2622090774a(9) =130336661775

External references