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A055180 Cumulative counting sequence: method B (noun,adjective)-pairs with first term 4. 0
4, 4, 1, 4, 2, 1, 1, 4, 3, 1, 3, 2, 1, 4, 4, 1, 5, 2, 2, 3, 2, 4, 6, 1, 6, 2, 5, 3, 3, 5, 1, 4, 7, 1, 8, 2, 6, 3, 5, 5, 3, 6, 2, 4, 8, 1, 9, 2, 8, 3, 7, 5, 5, 6, 4, 7, 1, 8, 1, 4, 10, 1, 12, 2, 9, 3, 8, 5, 7, 6, 5, 7, 3, 8, 4, 9, 1, 4, 12, 1, 14, 2, 10, 3, 10, 5, 9 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Segments (generated as at A055168):  4; 4,1; 4,2,1,1; 4,3,1,3,2,1; ...

Conjecture: every positive integer occurs.

LINKS

Table of n, a(n) for n=1..87.

EXAMPLE

Write 4, thus having 4 once, thus having 4 twice and 1 once, thus having 4 3 times and 1 3 times and 2 once, etc.

MATHEMATICA

s = {4}; Do[s = Flatten[{s, {#, Count[s, #]} & /@ DeleteDuplicates[s]}], {24}]; s (* Peter J. C. Moses, Mar 21 2013 *)

CROSSREFS

Cf. A055168.

Sequence in context: A010656 A321591 A023401 * A030788 A087709 A106642

Adjacent sequences:  A055177 A055178 A055179 * A055181 A055182 A055183

KEYWORD

nonn

AUTHOR

Clark Kimberling, Apr 27 2000

STATUS

approved

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Last modified January 18 16:36 EST 2022. Contains 350455 sequences. (Running on oeis4.)