Expansion of e.g.f. exp(2*x)/(1-4*x).

A097820

Expansion of e.g.f. exp(2*x)/(1-4*x).

Terms

    a(0) =1a(1) =6a(2) =52a(3) =632a(4) =10128a(5) =202592a(6) =4862272a(7) =136143744a(8) =4356600064a(9) =156837602816

External references