Structured truncated octahedral numbers.

Terms

a(0) =1a(1) =24a(2) =103a(3) =272a(4) =565a(5) =1016a(6) =1659a(7) =2528a(8) =3657a(9) =5080a(10) =6831a(11) =8944a(12) =11453a(13) =14392a(14) =17795a(15) =21696a(16) =26129a(17) =31128a(18) =36727a(19) =42960a(20) =49861a(21) =57464a(22) =65803a(23) =74912a(24) =84825a(25) =95576a(26) =107199a(27) =119728a(28) =133197a(29) =147640