G.f.: { ( Product_{j=1..infinity} (1-x^j) - 1 )/x }^24.

Terms

a(0) =1a(1) =24a(2) =276a(3) =2024a(4) =10602a(5) =41952a(6) =128500a(7) =303048a(8) =517155a(9) =463496a(10) =-609684a(11) =-3757992a(12) =-9340852a(13) =-14912280a(14) =-12957624a(15) =8669712a(16) =59707149a(17) =132295080a(18) =183499244a(19) =131501856a(20) =-113698752a(21) =-575221744a(22) =-1111921752a(23) =-1363192680a(24) =-824406065a(25) =889513752a(26) =3638565960a(27) =6404250248