A167208 - OEIS

A167208

Append two digits, each increasing by one modulo 10 from the last digit of the positive integers. 0 -> 12 1 -> 123 2 -> 234 .. 9 -> 901 10 -> 1012.

%I #7 Apr 12 2023 10:52:14

%S 12,123,234,345,456,567,678,789,890,901,1012,1123,1234,1345,1456,1567,

%T 1678,1789,1890,1901,2012,2123,2234,2345,2456,2567,2678,2789,2890,

%U 2901,3012,3123,3234,3345,3456,3567,3678,3789,3890,3901,4012,4123

%N Append two digits, each increasing by one modulo 10 from the last digit of the positive integers. 0 -> 12 1 -> 123 2 -> 234 .. 9 -> 901 10 -> 1012.

%K base,easy,nonn

%O 0,1

%A _Felix Tubiana_, Oct 30 2009