Magic constant of smallest order-n perfect magic cube.

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =315a(5) =651a(6) =1204a(7) =2052a(8) =3285a(9) =5005a(10) =7326a(11) =10374a(12) =14287a(13) =19215a(14) =25320a(15) =32776a(16) =41769a(17) =52497a(18) =65170a(19) =80010a(20) =97251a(21) =117139a(22) =139932a(23) =165900a(24) =195325a(25) =228501a(26) =265734a(27) =307342a(28) =353655a(29) =405015