Numerators of coefficients in function A(x) such that A(A(x)) = x+x^2.

Terms

a(0) =0a(1) =1a(2) =1a(3) =-1a(4) =1a(5) =-5a(6) =27a(7) =-9a(8) =171a(9) =-69a(10) =-579a(11) =10689a(12) =-60261a(13) =116535a(14) =-304555a(15) =268707a(16) =7942071a(17) =-19570935a(18) =9537731a(19) =1117836325a(20) =-630737297a(21) =-52310180977a(22) =618435378229a(23) =523526983623