If n <= 1 then n else smallest number having in decimal representation exactly one common digit with its predecessor but none with its pre-predecessor.
A107277
If n <= 1 then n else smallest number having in decimal representation exactly one common digit with its predecessor but none with its pre-predecessor.
Terms
- a(0) =0a(1) =1a(2) =12a(3) =20a(4) =30a(5) =31a(6) =41a(7) =42a(8) =52a(9) =53a(10) =63a(11) =64a(12) =74a(13) =75a(14) =85a(15) =86a(16) =96a(17) =97a(18) =107a(19) =122a(20) =233a(21) =300a(22) =401a(23) =422a(24) =523a(25) =560a(26) =611a(27) =712a(28) =730a(29) =804
External references
- oeis: A107277