Numbers n with property that for each single digit d of n, we can also see the decimal expansion of 2d as a substring of n.

A135495

Numbers n with property that for each single digit d of n, we can also see the decimal expansion of 2d as a substring of n.

Terms

    a(0) =0a(1) =121648a(2) =121684a(3) =124168a(4) =124816a(5) =128164a(6) =128416a(7) =161248a(8) =161284a(9) =164128a(10) =164812a(11) =168124a(12) =168412a(13) =412168a(14) =412816a(15) =416128a(16) =416812a(17) =481216a(18) =481612a(19) =812164a(20) =812416a(21) =816124a(22) =816412a(23) =841216a(24) =841612a(25) =1121648a(26) =1121684a(27) =1124168

External references