Expansion of exp( Sum_{n >= 1} L(2*n)*L(4*n)*x^n/n ), where L(n) = A000032(n) is a Lucas number.

A256178

Expansion of exp( Sum_{n >= 1} L(2*n)*L(4*n)*x^n/n ), where L(n) = A000032(n) is a Lucas number.

Terms

    a(0) =1a(1) =21a(2) =385a(3) =6930a(4) =124410a(5) =2232594a(6) =40062659a(7) =718896255a(8) =12900072515a(9) =231482415780

External references