A026011 Expansion of Product(1+q^m)^(2m); m=1..inf.

1, 2, 5, 14, 30, 68, 145, 298, 600, 1182, 2280, 4318, 8064, 14824, 26917, 48292, 85675, 150466, 261762, 451328, 771739, 1309362, 2205109, 3687904, 6127155, 10116074, 16602508, 27093582, 43974355, 71003224