Lucky numbers ending with digit 7.

Terms

a(0) =7a(1) =37a(2) =67a(3) =87a(4) =127a(5) =237a(6) =267a(7) =297a(8) =307a(9) =327a(10) =357a(11) =367a(12) =427a(13) =477a(14) =487a(15) =517a(16) =537a(17) =577a(18) =717a(19) =727a(20) =777a(21) =787a(22) =867a(23) =897a(24) =927a(25) =937a(26) =957a(27) =997a(28) =1057a(29) =1087