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A184281
Number of distinct n X 4 toroidal 0..2 arrays.
2
24, 855, 44368, 2691711, 174342216, 11767964475, 817028472960, 57906884939751, 4169295435709000, 303941636737938639, 22381156868522560176, 1661800897452497728851, 124251574792869522460584, 9345493446918377993036595, 706519304586940156873850720
OFFSET
1,1
LINKS
CROSSREFS
Column 4 of A184284.
Sequence in context: A195130 A005149 A027411 * A220176 A275563 A275088
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 10 2011
EXTENSIONS
Terms a(8) and beyond from Andrew Howroyd, Sep 27 2017
STATUS
approved