A323421 Lexicographically earliest sequence of terms describing its successive chunks of different digits.

1, 10, 2, 3, 4, 5, 6, 7, 8, 9, 9, 1, 1, 2, 3, 3, 1, 2, 4, 4, 1, 2, 3, 5, 5, 1, 2, 3, 4, 6, 6, 1, 2, 3, 4, 5, 7, 7, 1, 2, 3, 4, 5, 6, 8, 8, 1, 2, 3, 4, 5, 6, 7, 9, 9, 1, 2, 3, 4, 5, 6, 7, 8, 8, 8, 8, 1, 1, 2, 3, 3, 1, 2, 2, 2, 1, 1, 2, 3, 4, 4, 1, 2, 3, 3, 3, 1, 1, 2, 3, 3, 1, 2, 4, 5, 5, 1, 2, 3, 4, 4, 4, 1, 1, 2, 3, 3, 1, 2

Offset

1,2

Comments

Put a vertical stroke between two identical digits; those strokes delimitate a succession of chunks whose sizes are given by the sequence itself.

There is only one integer 10 in the sequence.

The other integers up to a(28445) are 1 (with 7940 copies), 2 (with 6904 copies), 3 (with 6157 copies), 4 (with 3706 copies), 5 (with 2091 copies), 6 (with 1065 copies), 7 (with 445 copies), 8 (with 123 copies) and 9 (with only 14 copies).

Links

Jean-Marc Falcoz, Table of n, a(n) for n = 1..28446

Example

The stroke technique transforms the sequence into 1 | 10,2,3,4,5,6,7,8,9 | 9,1 | 1,2,3 | 3,1,2,4 |... and we see indeed that the chunks of different digits have sizes 1, 10, 2, 3, 4, ...

Crossrefs

Sequence in context: A232589 A010175 A363839 * A306321 A160136 A333478

Adjacent sequences: A323418 A323419 A323420 * A323422 A323423 A323424

Keyword

nonn,base

Author

Eric Angelini and Jean-Marc Falcoz, Jan 14 2019

Status

approved