Number of magic labelings of the prism graph I X C_5 with magic sum n.

Terms

a(0) =1a(1) =11a(2) =57a(3) =197a(4) =533a(5) =1223a(6) =2494a(7) =4654a(8) =8105a(9) =13355a(10) =21031a(11) =31891a(12) =46837a(13) =66927a(14) =93388a(15) =127628a(16) =171249a(17) =226059a(18) =294085a(19) =377585a(20) =479061a(21) =601271a(22) =747242a(23) =920282a(24) =1123993a(25) =1362283a(26) =1639379a(27) =1959839a(28) =2328565a(29) =2750815