A049185 Revert transform of 2*(1 + x + x^2 + x^6 + x^7)-1/(1-x).

1, 1, 3, 9, 33, 127, 517, 2171, 9359, 41139, 183749, 831479, 3803859, 17563853, 81747331, 383116181, 1806427061, 8563227837, 40787427055, 195106310221, 936890791253, 4514624943827, 21823938003449, 105804610564879