a(0) = 1, a(n) = 9*n^2 + 2 for n>0.

Terms

a(0) =1a(1) =11a(2) =38a(3) =83a(4) =146a(5) =227a(6) =326a(7) =443a(8) =578a(9) =731a(10) =902a(11) =1091a(12) =1298a(13) =1523a(14) =1766a(15) =2027a(16) =2306a(17) =2603a(18) =2918a(19) =3251a(20) =3602a(21) =3971a(22) =4358a(23) =4763a(24) =5186a(25) =5627a(26) =6086a(27) =6563a(28) =7058a(29) =7571