The On-Line Encyclopedia of Integer Sequences (OEIS)

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A200896

Number of nX2 0..5 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other
(history; published version)

#5 by Russ Cox at Sat Mar 31 12:36:41 EDT 2012

AUTHOR

_R. H. Hardin (rhhardin(AT)att.net) _ Nov 23 2011

Discussion

Sat Mar 31

12:36

OEIS Server: https://oeis.org/edit/global/875

#4 by Ron Hardin at Wed Nov 23 19:27:09 EST 2011

STATUS

editing

approved

#3 by Ron Hardin at Wed Nov 23 19:27:05 EST 2011

LINKS

R. H. Hardin, <a href="/A200896/b200896.txt">Table of n, a(n) for n = 1..33</a>

#2 by Ron Hardin at Wed Nov 23 19:26:45 EST 2011

NAME

allocated for Ron HardinNumber of nX2 0..5 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other

DATA

15, 30, 13, 649, 3247, 1483, 84463, 395138, 147370, 10892006, 61376744, 26060323, 1860718688, 9722469665, 3689916515, 298977508446, 1746612244800, 731620635705, 56300135952299, 307084986199367, 118048036603381

OFFSET

1,1

COMMENTS

Column 2 of A200902

EXAMPLE

Some solutions for n=3

..0..1....0..2....0..3....0..1....0..2....0..3....0..3....0..2....0..1....0..3

..2..3....1..4....1..4....2..5....1..5....2..4....2..5....1..3....3..5....1..5

..4..5....3..5....2..5....3..4....3..4....1..5....1..4....4..5....2..4....2..4

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Nov 23 2011

STATUS

approved

editing

#1 by Ron Hardin at Wed Nov 23 19:24:02 EST 2011

NAME

allocated for Ron Hardin

KEYWORD

allocated

STATUS

approved