Lucky numbers with size of gaps equal to 12 (lower terms).

Terms

a(0) =51a(1) =115a(2) =307a(3) =451a(4) =463a(5) =541a(6) =601a(7) =855a(8) =997a(9) =1041a(10) =1155a(11) =1167a(12) =1219a(13) =1233a(14) =1263a(15) =1291a(16) =1459a(17) =1473a(18) =1599a(19) =1663a(20) =1711a(21) =1737a(22) =1857a(23) =1965a(24) =2067a(25) =2239a(26) =2323a(27) =2343a(28) =2427a(29) =2479