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%I #10 Nov 22 2020 09:03:46
%S 0,1,2,3,4,5,6,7,8,9,10,11,20,12,22,13,23,21,24,25,26,14,27,28,15,29,
%T 30,32,16,33,34,35,36,17,37,38,39,40,31,42,43,44,45,46,41,47,48,49,50,
%U 52,53,18,54,55,56,57,58,59,19,60,62,63,64,65,66,51,67,68,69,70,72,73,74,61,75,76,77,78,79
%N Lexicographically earliest sequence of distinct nonnegative terms such that the numbers of digits between successive 1s are distinct.
%H Carole Dubois, <a href="/A339018/b339018.txt">Table of n, a(n) for n = 1..5000</a>
%e There are 8 digits between the 1 of a(2) = 1 and the 1 of a(11) = 10: they are 2,3,4,5,6,7,8 and 9;
%e there is 1 digit between the 1 of a(11) = 10 and the first 1 of a(12) = 11: this is 0;
%e there is 0 digit between the first 1 of a(12) = 11 and the last 1 of a(12) = 11;
%e there are 2 digits between the last 1 of a(12) = 11 and the 1 of a(14) = 12: they are 2 and 0; etc.
%e All those gaps between successive 1s are distinct.
%Y Cf. A273479.
%K base,nonn
%O 1,3
%A _Eric Angelini_, Nov 19 2020
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