E.g.f.: Product_{k>=1} (1 + x^(2*k-1)/(2*k-1)) / (1 - x^(2*k-1)/(2*k-1)).

A326859

E.g.f.: Product_{k>=1} (1 + x^(2*k-1)/(2*k-1)) / (1 - x^(2*k-1)/(2*k-1)).

Terms

    a(0) =1a(1) =2a(2) =4a(3) =16a(4) =80a(5) =448a(6) =3136a(7) =24512a(8) =218368a(9) =2169600a(10) =23752704a(11) =282882048a(12) =3661787136a(13) =51076644864a(14) =763127316480

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