Number of magic labelings of the prism graph I X C_7 with magic sum n.

Terms

a(0) =1a(1) =29a(2) =289a(3) =1640a(4) =6604a(5) =21122a(6) =57271a(7) =137155a(8) =298184a(9) =599954a(10) =1132942a(11) =2029229a(12) =3475465a(13) =5728289a(14) =9132418a(15) =14141618a(16) =21342771a(17) =31483251a(18) =45501823a(19) =64563278a(20) =90097018a(21) =123839804a(22) =167882881a(23) =224723693a(24) =297322402a(25) =389163424a(26) =504322196a(27) =647537387a(28) =824288767a(29) =1040880947