Multiples of 19.

Terms

a(0) =0a(1) =19a(2) =38a(3) =57a(4) =76a(5) =95a(6) =114a(7) =133a(8) =152a(9) =171a(10) =190a(11) =209a(12) =228a(13) =247a(14) =266a(15) =285a(16) =304a(17) =323a(18) =342a(19) =361a(20) =380a(21) =399a(22) =418a(23) =437a(24) =456a(25) =475a(26) =494a(27) =513a(28) =532a(29) =551