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Lexicographically earliest strictly increasing decimal autovarious sequence: a(n) = number of distinct n-digit endings (left-zero-padded) of terms in the sequence.
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%I #10 May 16 2023 07:09:00

%S 1,2,11,12,21,22,31,32,41,42,51,101,1001,1002,1011,1012,1021,1022,

%T 1031,1032,1041,10001,100001,100002,100011,100012,100021,100022,

%U 100031,100032,100041,1000001,10000001,10000002,10000011,10000012

%N Lexicographically earliest strictly increasing decimal autovarious sequence: a(n) = number of distinct n-digit endings (left-zero-padded) of terms in the sequence.

%C The first a(n) terms include all a(n) n-digit endings.

%K nonn,base,nice

%O 0,2

%A _David W. Wilson_