Sequence of coefficients arising in study of generating function for A067619.

Terms

a(0) =1a(1) =-1a(2) =3a(3) =-2a(4) =5a(5) =-5a(6) =8a(7) =-7a(8) =13a(9) =-13a(10) =18a(11) =-19a(12) =26a(13) =-29a(14) =39a(15) =-40a(16) =52a(17) =-60a(18) =72a(19) =-81a(20) =101a(21) =-113a(22) =134a(23) =-152a(24) =181a(25) =-206a(26) =243a(27) =-273a(28) =318a(29) =-365