a(n) = [x^n] ( E(x)/E(-x) )^n where E(x) = exp( Sum_{k >= 1} A208675(k)*x^k/k ).

A362727

a(n) = [x^n] ( E(x)/E(-x) )^n where E(x) = exp( Sum_{k >= 1} A208675(k)*x^k/k ).

Terms

    a(0) =1a(1) =2a(2) =8a(3) =110a(4) =960a(5) =12502a(6) =136952a(7) =1746558a(8) =20951040a(9) =267467294a(10) =3347043208a(11) =43051344074a(12) =550991269824

External references