E.g.f.: (cosh(3*x) + sinh(3*x)*cosh(x)) / sqrt(1 - sinh(x)^2*sinh(3*x)^2).
A245154
E.g.f.: (cosh(3*x) + sinh(3*x)*cosh(x)) / sqrt(1 - sinh(x)^2*sinh(3*x)^2).
Terms
- a(0) =1a(1) =3a(2) =9a(3) =36a(4) =189a(5) =2148a(6) =26109a(7) =371136a(8) =5407929a(9) =95795568a(10) =1832049009a(11) =41428038336a(12) =972380766069
External references
- oeis: A245154