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A113138 Self-describing sequence made of strings of consecutive integers. The number of elements in each string is the sequence itself. 2
1, 3, 4, 5, 1, 2, 3, 4, 1, 2, 3, 4, 5, 1, 3, 4, 1, 2, 3, 1, 2, 3, 4, 1, 3, 4, 1, 2, 3, 1, 2, 3, 4, 1, 2, 3, 4, 5, 1, 3, 4, 5, 1, 2, 3, 4, 1, 3, 4, 1, 2, 3, 1, 3, 4, 1, 2, 3, 1, 2, 3, 4, 1, 3, 4, 5, 1, 2, 3, 4, 1, 3, 4, 1, 2, 3, 1, 3, 4, 1, 2, 3, 1, 2, 3, 4, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The less interesting sequence 1,1,1,1,1,1,1,1, ... obeys the same rule.

LINKS

Rémy Sigrist, Table of n, a(n) for n = 1..1000

Rémy Sigrist, PARI program for A113138

EXAMPLE

First string is "1", having 1 element. Second string is "3,4,5" having 3 elements. Third string is "1,2,3,4" which has 4 elements. Next string is "1,2,3,4,5", made of 5 elements. Next string is "1", having only 1 element, etc. So we have 1 element, then 3, then 4, then 5, then 1, etc. This is the sequence itself.

CROSSREFS

Cf. A281579.

Sequence in context: A199066 A306584 A176948 * A010263 A011303 A225405

Adjacent sequences:  A113135 A113136 A113137 * A113139 A113140 A113141

KEYWORD

easy,nonn,nice

AUTHOR

Eric Angelini, Jan 04 2006

EXTENSIONS

More terms from Rémy Sigrist, Feb 08 2017

STATUS

approved

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Last modified October 22 00:52 EDT 2019. Contains 328315 sequences. (Running on oeis4.)