a(n) = 17*n*(n+1).

Terms

a(0) =0a(1) =34a(2) =102a(3) =204a(4) =340a(5) =510a(6) =714a(7) =952a(8) =1224a(9) =1530a(10) =1870a(11) =2244a(12) =2652a(13) =3094a(14) =3570a(15) =4080a(16) =4624a(17) =5202a(18) =5814a(19) =6460a(20) =7140a(21) =7854a(22) =8602a(23) =9384a(24) =10200a(25) =11050a(26) =11934a(27) =12852a(28) =13804a(29) =14790