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A264661
Number of 3Xn arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 5.
0
1, 8, 314, 20940, 3084352, 726042624, 284038382592
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OFFSET
1,2
COMMENTS
Row 3 of
A264659
.
LINKS
Table of n, a(n) for n=1..7.
EXAMPLE
Some solutions for n=5
..0..2.10..6..5....0.12..6..2.10....0.10..6..1..7....0.10..7..5..1
..8..7.11..3..1....8..7.11.13..5....8..5.11..9.13....4..2.12..6.11
.14.12..4..9.13....4.14..1..9..3....4.12..2.14..3...14..8.13..9..3
CROSSREFS
Cf.
A264659
.
Sequence in context:
A222095
A231124
A081980
*
A231781
A220618
A221721
Adjacent sequences:
A264658
A264659
A264660
*
A264662
A264663
A264664
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Nov 20 2015
STATUS
approved
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Last modified August 27 05:29 EDT 2024. Contains 375462 sequences. (Running on oeis4.)