A107682 - OEIS

A107682

The size of every run of identical digits is given by the digit immediately following immediately the said run. There can be no two identical runs in the sequence.

0, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 1, 6, 1, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 2, 2, 2, 3, 3, 2, 2, 2, 2, 4, 4, 2, 2, 2, 2, 2, 5, 5, 2, 2, 2, 2, 2, 2, 6, 6, 2, 2, 2, 2, 2, 2, 2, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 8, 8, 2, 2, 2, 2, 2, 2

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OFFSET

0,4

COMMENTS

The sequence is finite.

LINKS

Table of n, a(n) for n=0..104.

E. Angelini, Auto-chunks.

E. Angelini, Auto-chunks [Cached copy with permission]

EXAMPLE

First run ("0") is made of 1 "identical digit(s)", thus is followed by 1; second run ("11") is made of 2 identical digits, thus followed by 2; third run ("2") is made of 1 "identical digit(s)", thus followed by 1; etc.

CROSSREFS

Sequence in context: A309400 A294306 A181348 * A349703 A178239 A260534

Adjacent sequences: A107679 A107680 A107681 * A107683 A107684 A107685

KEYWORD

base,easy,fini,nonn

AUTHOR

Eric Angelini, Jun 10 2005

STATUS

approved