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A162086 Number of n X n 0..3 arrays with rows and columns, considered as 4-ary numbers, in nondecreasing order 2
4, 86, 14178, 21907055, 348053502590, 60704077222861152, 122233352821430587249163, 2957950981271006387648141644093 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..8.

CROSSREFS

Sequence in context: A130268 A293318 A204460 * A116320 A220277 A122209

Adjacent sequences:  A162083 A162084 A162085 * A162087 A162088 A162089

KEYWORD

nonn

AUTHOR

R. H. Hardin Jun 25 2009

STATUS

approved

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Last modified October 26 06:08 EDT 2021. Contains 348257 sequences. (Running on oeis4.)