a(n) = S(7,n)/S(1,n), where S(r,n) = Sum_{k = 0..floor(n/2)} ( binomial(n,k) - binomial(n,k-1) )^r.
A361891
a(n) = S(7,n)/S(1,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) =1a(3) =43a(4) =386a(5) =9451a(6) =246961a(7) =6031627a(8) =212559508a(9) =6571985126a(10) =243940325734
External references
- oeis: A361891