E.g.f.: (cosh(2*x) + sinh(2*x)*cosh(x)) / sqrt(1 - sinh(x)^2*sinh(2*x)^2).
A245139
E.g.f.: (cosh(2*x) + sinh(2*x)*cosh(x)) / sqrt(1 - sinh(x)^2*sinh(2*x)^2).
Terms
- a(0) =1a(1) =2a(2) =4a(3) =14a(4) =64a(5) =602a(6) =5344a(7) =58214a(8) =661504a(9) =9666482a(10) =145897984a(11) =2611988414a(12) =47548524544
External references
- oeis: A245139