a(n) = Sum_{k=0..n} binomial(2*k, k)*binomial(2*n, n)/(n + 1). Row sums of A379100.
A379099
a(n) = Sum_{k=0..n} binomial(2*k, k)*binomial(2*n, n)/(n + 1). Row sums of A379100.
Terms
- a(0) =1a(1) =3a(2) =18a(3) =145a(4) =1386a(5) =14742a(6) =168300a(7) =2019303a(8) =25135110a(9) =321849814a(10) =4215006588a(11) =56222048610a(12) =761436454492
External references
- oeis: A379099