Lucky numbers indexed by the lucky numbers (Lucky numbers with lucky number subscripts).

Terms

a(0) =1a(1) =7a(2) =21a(3) =31a(4) =49a(5) =63a(6) =87a(7) =111a(8) =141a(9) =159a(10) =189a(11) =219a(12) =259a(13) =267a(14) =339a(15) =367a(16) =391a(17) =415a(18) =427a(19) =463a(20) =517a(21) =553a(22) =601a(23) =639a(24) =679a(25) =717a(26) =801a(27) =819a(28) =855a(29) =873