a(n) = [x^n] ( E(x)/E(-x) )^n where E(x)= exp( Sum_{k >= 1} A005259(k)*x^k/k ).
A362723
a(n) = [x^n] ( E(x)/E(-x) )^n where E(x)= exp( Sum_{k >= 1} A005259(k)*x^k/k ).
Terms
- a(0) =1a(1) =10a(2) =200a(3) =7390a(4) =260800a(5) =10263010a(6) =407520920a(7) =16758685030a(8) =697767370240
External references
- oeis: A362723