Lucky numbers with size of gaps equal to 8 (upper terms).

Terms

a(0) =87a(1) =159a(2) =219a(3) =231a(4) =297a(5) =339a(6) =357a(7) =591a(8) =639a(9) =693a(10) =777a(11) =831a(12) =1155a(13) =1197a(14) =1365a(15) =1575a(16) =1701a(17) =1731a(18) =1809a(19) =1827a(20) =1941a(21) =1995a(22) =2031a(23) =2343a(24) =2403a(25) =2427a(26) =2571a(27) =2607a(28) =2661a(29) =2697