a(0) = 1 and a(n) = (1/n) * Sum_{k=1..n} (-2)^(n-k) * binomial(n,k) * binomial(n+(n-1)*k,k-1) for n > 0.
A336714
a(0) = 1 and a(n) = (1/n) * Sum_{k=1..n} (-2)^(n-k) * binomial(n,k) * binomial(n+(n-1)*k,k-1) for n > 0.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =2a(4) =36a(5) =766a(6) =20910a(7) =707472a(8) =28740656a(9) =1367040950a(10) =74645106114
External references
- oeis: A336714