G.f. satisfies: A(x) = (1 + x*A(x)^2) * (1 + x*A(x)^3).
A215654
G.f. satisfies: A(x) = (1 + x*A(x)^2) * (1 + x*A(x)^3).
Terms
- a(0) =1a(1) =2a(2) =11a(3) =81a(4) =684a(5) =6257a(6) =60325a(7) =603641a(8) =6210059a(9) =65272503a(10) =697898849a(11) =7566847547a(12) =82999675563a(13) =919376968734
External references
- oeis: A215654