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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
OFFSET
1,1
CROSSREFS
Sequence in context: A130268 A293318 A204460 * A116320 A220277 A122209
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 25 2009
STATUS
approved