Expansion of B(x)^2, where B(x) is the g.f. of A108482.

Terms

a(0) =1a(1) =2a(2) =3a(3) =2a(4) =-1a(5) =-4a(6) =-4a(7) =0a(8) =7a(9) =10a(10) =5a(11) =-8a(12) =-20a(13) =-18a(14) =1a(15) =28a(16) =40a(17) =20a(18) =-25a(19) =-64a(20) =-59a(21) =2a(22) =81a(23) =114a(24) =55a(25) =-74a(26) =-178a(27) =-158a(28) =9a(29) =220