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A214010 Number of n X n nonnegative integer matrices with row and column i=1..n having sum <= i*6 0
7, 1372, 9976732, 2747459653062, 29476753771054668510 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A214011

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for n=3

..0..4..0....0..3..0....0..0..0....0..3..0....0..1..0....0..1..4....3..0..0

..0..0..0....3..3..0....2..3..4....0..0..7....2..0..0....6..0..0....0..9..0

..4..0..0....0..5..4....0..1..0....0..0.10....0..1..1....0..5..5....0..0..5

CROSSREFS

Sequence in context: A152518 A210396 A289482 * A145451 A144676 A243232

Adjacent sequences:  A214007 A214008 A214009 * A214011 A214012 A214013

KEYWORD

nonn

AUTHOR

R. H. Hardin Jun 30 2012

STATUS

approved

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Last modified February 26 05:51 EST 2020. Contains 332277 sequences. (Running on oeis4.)