A049179 Revert transform of 2*(1 + x + x^2 + x^5 + x^6)-1/(1-x).

1, 1, 3, 9, 31, 113, 431, 1697, 6849, 28181, 117787, 498705, 2134499, 9220393, 40146495, 176011777, 776363417, 3442818809, 15340344035, 68645684937, 308365373183, 1390064360561, 6286153799119, 28510001658689