One half of a trisection of A001700: binomial(6n+5,3(n+1))/2, n >= 0.

A187366

One half of a trisection of A001700: binomial(6n+5,3(n+1))/2, n >= 0.

Terms

    a(0) =5a(1) =231a(2) =12155a(3) =676039a(4) =38779380a(5) =2268783825a(6) =134564468610

External references