Numerators of coefficients in (1+x)^(1+x) power series.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =3a(7) =-1a(8) =59a(9) =-71a(10) =131a(11) =-53a(12) =179063a(13) =-152587a(14) =1711379a(15) =-2976271a(16) =10956347a(17) =-19341869a(18) =4868569481a(19) =-13052168197a(21) =-150881331703a(22) =312800427143