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A036511 Smallest square containing exactly n 4's. 2
4, 144, 1444, 44944, 6441444, 47444544, 4434494464, 44424414441, 4243443441444, 44844344414464, 444431244445444, 44044624434444544, 441544444344443449, 14444545446449449444, 346454444084444444644, 44024844440444424044544 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..16.

CROSSREFS

Cf. A048349. - Jon E. Schoenfield, Jan 24 2009

Sequence in context: A017294 A273698 A134631 * A263386 A186720 A060870

Adjacent sequences:  A036508 A036509 A036510 * A036512 A036513 A036514

KEYWORD

nonn,base

AUTHOR

David W. Wilson

EXTENSIONS

a(13)-a(15) from Jon E. Schoenfield, Jan 17 2009

STATUS

approved

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Last modified September 26 05:09 EDT 2017. Contains 292502 sequences.