Trisection of A000984 (central binomial coefficients): binomial(2(3n+1),3n+1)/2, n>=0.

A187364

Trisection of A000984 (central binomial coefficients): binomial(2(3n+1),3n+1)/2, n>=0.

Terms

    a(0) =1a(1) =35a(2) =1716a(3) =92378a(4) =5200300a(5) =300540195a(6) =17672631900

External references