Detour index of n body-centered cubic grid unit cells in a row.

Terms

a(0) =64a(1) =298a(2) =752a(3) =1476a(4) =2520a(5) =3934a(6) =5768a(7) =8072a(8) =10896a(9) =14290a(10) =18304a(11) =22988a(12) =28392a(13) =34566a(14) =41560a(15) =49424a(16) =58208a(17) =67962a(18) =78736a(19) =90580a(20) =103544a(21) =117678a(22) =133032a(23) =149656a(24) =167600a(25) =186914a(26) =207648a(27) =229852a(28) =253576a(29) =278870