a(n) = 3*binomial(8*n+6,n)/(4*n+3).

A234465

a(n) = 3*binomial(8*n+6,n)/(4*n+3).

Terms

    a(0) =1a(1) =6a(2) =63a(3) =812a(4) =11655a(5) =178794a(6) =2869685a(7) =47593176a(8) =809172936a(9) =14028048650a(10) =247039158366

External references