100-gonal numbers: a(n) = 98*n*(n-1)/2 + n.

Terms

a(0) =0a(1) =1a(2) =100a(3) =297a(4) =592a(5) =985a(6) =1476a(7) =2065a(8) =2752a(9) =3537a(10) =4420a(11) =5401a(12) =6480a(13) =7657a(14) =8932a(15) =10305a(16) =11776a(17) =13345a(18) =15012a(19) =16777a(20) =18640a(21) =20601a(22) =22660a(23) =24817a(24) =27072a(25) =29425a(26) =31876a(27) =34425a(28) =37072a(29) =39817