a(n) = 6 * GaussBinomial(2*n, 2, 2) / denominator(Bernoulli(2*n, 1)).

A346463

a(n) = 6 * GaussBinomial(2*n, 2, 2) / denominator(Bernoulli(2*n, 1)).

Terms

    a(0) =0a(1) =1a(2) =7a(3) =93a(4) =2159a(5) =15841a(6) =6141a(7) =44731051a(8) =8421119a(9) =86113647a(10) =3331843885a(11) =127479517837a(12) =103104368637

External references