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A044270 Numbers n such that string 2,1 occurs in the base 9 representation of n but not of n-1. 0

%I #5 Mar 30 2012 18:56:43

%S 19,100,171,181,262,343,424,505,586,667,748,829,900,910,991,1072,1153,

%T 1234,1315,1396,1477,1539,1629,1639,1720,1801,1882,1963,2044,2125,

%U 2206,2287,2358,2368,2449,2530,2611,2692,2773,2854

%N Numbers n such that string 2,1 occurs in the base 9 representation of n but not of n-1.

%K nonn,base

%O 1,1

%A _Clark Kimberling_

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Last modified July 15 12:56 EDT 2024. Contains 374332 sequences. (Running on oeis4.)