Number of 1-sided strip polypons with n cells.

Terms

a(0) =1a(1) =2a(2) =2a(3) =4a(4) =4a(5) =7a(6) =8a(7) =14a(8) =16a(9) =26a(10) =32a(11) =50a(12) =60a(13) =93a(14) =116a(15) =180a(16) =224a(17) =340a(18) =432a(19) =646a(20) =812a(21) =1215a(22) =1552a(23) =2314a(24) =2944a(25) =4371a(26) =5592a(27) =8252a(28) =10520a(29) =15558