a(n) = 2^(2*n-1)*binomial(2*n,n) + 2^(4*n-1).

A045952

a(n) = 2^(2*n-1)*binomial(2*n,n) + 2^(4*n-1).

Terms

    a(0) =1a(1) =12a(2) =176a(3) =2688a(4) =41728a(5) =653312a(6) =10280960a(7) =162332672a(8) =2569207808a(9) =40732459008a(10) =646621167616

External references