Structured octagonal prism numbers.

Terms

a(0) =1a(1) =16a(2) =63a(3) =160a(4) =325a(5) =576a(6) =931a(7) =1408a(8) =2025a(9) =2800a(10) =3751a(11) =4896a(12) =6253a(13) =7840a(14) =9675a(15) =11776a(16) =14161a(17) =16848a(18) =19855a(19) =23200a(20) =26901a(21) =30976a(22) =35443a(23) =40320a(24) =45625a(25) =51376a(26) =57591a(27) =64288a(28) =71485a(29) =79200