A339018 Lexicographically earliest sequence of distinct nonnegative terms such that the numbers of digits between successive 1s are distinct.

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, 30, 32, 16, 33, 34, 35, 36, 17, 37, 38, 39, 40, 31, 42, 43, 44, 45, 46, 41, 47, 48, 49, 50, 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

Offset

1,3

Links

Carole Dubois, Table of n, a(n) for n = 1..5000

Example

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;
there is 1 digit between the 1 of a(11) = 10 and the first 1 of a(12) = 11: this is 0;
there is 0 digit between the first 1 of a(12) = 11 and the last 1 of a(12) = 11;
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.
All those gaps between successive 1s are distinct.

Crossrefs

Cf. A273479.

Sequence in context: A377961 A275512 A332144 * A303948 A275413 A273376

Adjacent sequences: A339015 A339016 A339017 * A339019 A339020 A339021

Keyword

base,nonn

Author

Eric Angelini, Nov 19 2020

Status

approved