Alternate partial sums of binomial(3n,n)^2.

A188680

Alternate partial sums of binomial(3n,n)^2.

Terms

    a(0) =1a(1) =8a(2) =217a(3) =6839a(4) =238186a(5) =8779823a(6) =335842273a(7) =13185196127a(8) =527732395714

External references