63-gonal numbers: a(n) = n*(61*n - 59)/2.

Terms

a(0) =0a(1) =1a(2) =63a(3) =186a(4) =370a(5) =615a(6) =921a(7) =1288a(8) =1716a(9) =2205a(10) =2755a(11) =3366a(12) =4038a(13) =4771a(14) =5565a(15) =6420a(16) =7336a(17) =8313a(18) =9351a(19) =10450a(20) =11610a(21) =12831a(22) =14113a(23) =15456a(24) =16860a(25) =18325a(26) =19851a(27) =21438a(28) =23086a(29) =24795