A049178 Revert transform of 2*(1 + x + x^2 + x^3 + x^4 + x^6)-1/(1-x).

1, 1, 1, 1, 3, 15, 59, 185, 513, 1429, 4429, 15157, 53063, 181075, 601335, 1986857, 6668441, 22844345, 79190777, 274979521, 952675283, 3299619927, 11466715411, 40054475169, 140536413497, 494404614557, 1741798930389, 6144137237061