Numerators of coefficients in function a(x) such that a(a(a(x))) = sinh x.

A052134

Numerators of coefficients in function a(x) such that a(a(a(x))) = sinh x.

Terms

    a(0) =1a(1) =1a(2) =-7a(3) =643a(4) =-13583a(5) =29957a(6) =-24277937a(7) =6382646731

External references