E.g.f.: Product_{k>=1} (1 + sinh(k*x^k)).
A270669
E.g.f.: Product_{k>=1} (1 + sinh(k*x^k)).
Terms
- a(0) =1a(1) =1a(2) =4a(3) =31a(4) =168a(5) =1841a(6) =19320a(7) =226885a(8) =2655408a(9) =47569681a(10) =743996880a(11) =12582916061a(12) =245804712120
External references
- oeis: A270669