A278856 Between two successive digits "1" there are 0, then 1, then 2, then 3, ... other digits.

0, 1, 10, 12, 2, 13, 3, 4, 14, 5, 6, 7, 15, 8, 9, 20, 16, 22, 23, 21, 24, 25, 26, 31, 27, 28, 29, 30, 17, 32, 33, 34, 35, 18, 36, 37, 38, 39, 41, 40, 42, 43, 44, 45, 51, 46, 47, 48, 49, 50, 52, 19, 53, 54, 55, 56, 57, 58, 100, 59, 60, 62, 63, 64, 65, 102, 66, 67, 68, 69, 70, 72, 61, 73, 74

Offset

1,3

Comments

The sequence starts with a(1) = 0 and is always extended with the smallest integer not yet present that does not lead to a contradiction.

Links

Jean-Marc Falcoz, Table of n, a(n) for n = 1..1053

Example

There are 0 digit between "1" and "10"; there is 1 digit between the "1" of "10" and the "1" of "12" (this is the "0" of "10"); there are 2 digits between the "1" of "12" and the "1" of "13" (they are the "2" of "12" and the "2" of "2"); there are 3 digits between the "1" of "13" and the "1" of "14" (they are the "3" of "13", the "3" of "3" and the "4" of "4"); etc.

Crossrefs

Sequence in context: A064795 A273463 A283430 * A316914 A350444 A342356

Adjacent sequences: A278853 A278854 A278855 * A278857 A278858 A278859

Keyword

nonn,base

Author

Eric Angelini and Jean-Marc Falcoz, Nov 29 2016

Status

approved