Centered 19-gonal numbers.

Terms

a(0) =1a(1) =20a(2) =58a(3) =115a(4) =191a(5) =286a(6) =400a(7) =533a(8) =685a(9) =856a(10) =1046a(11) =1255a(12) =1483a(13) =1730a(14) =1996a(15) =2281a(16) =2585a(17) =2908a(18) =3250a(19) =3611a(20) =3991a(21) =4390a(22) =4808a(23) =5245a(24) =5701a(25) =6176a(26) =6670a(27) =7183a(28) =7715a(29) =8266