G.f. A(x) satisfies: A(x) = A(x^2 - x^5)/x.

Terms

a(0) =1a(1) =-1a(2) =-1a(3) =4a(4) =-7a(5) =11a(6) =-18a(7) =-5a(8) =138a(9) =-368a(10) =298a(11) =819a(12) =-2863a(13) =2711a(14) =5105a(15) =-18524a(16) =8298a(17) =92719a(18) =-344351a(19) =606264a(20) =-38650a(21) =-3668127a(22) =13802755a(23) =-27695500a(24) =16311302a(25) =102383087a(26) =-440646648a(27) =939806924a(28) =-847930096a(29) =-2006926300