a(n) = S(7,n), where S(r,n) = Sum_{k = 0..floor(n/2)} ( binomial(n,k) - binomial(n,k-1) )^r.
A361890
a(n) = S(7,n), where S(r,n) = Sum_{k = 0..floor(n/2)} ( binomial(n,k) - binomial(n,k-1) )^r.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =129a(4) =2316a(5) =94510a(6) =4939220a(7) =211106945a(8) =14879165560a(9) =828070125876
External references
- oeis: A361890