Number of octagons that can be formed with perimeter n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =7a(6) =10a(7) =14a(8) =20a(9) =27a(10) =36a(11) =48a(12) =63a(13) =82a(14) =104a(15) =134a(16) =167a(17) =211a(18) =258a(19) =322a(20) =389a(21) =480a(22) =572a(23) =698a(24) =825a(25) =996a(26) =1165a(27) =1395a(28) =1620a(29) =1923