p-INVERT of (1,1,1,1,1,...), where p(S) = 1 - S^3 - S^6.

Terms

a(0) =0a(1) =0a(2) =1a(3) =3a(4) =6a(5) =12a(6) =27a(7) =63a(8) =143a(9) =315a(10) =684a(11) =1479a(12) =3195a(13) =6903a(14) =14932a(15) =32361a(16) =70266a(17) =152775a(18) =332397a(19) =723330a(20) =1573829a(21) =3423444a(22) =7444722a(23) =16185939a(24) =35185779a(25) =76483890a(26) =166253545a(27) =361396431a(28) =785621808a(29) =1707884880