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A201276
Number of n X 7 0..2 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.
2
1, 3, 27, 54, 740, 2827, 3113, 27008, 71704, 59070, 408600, 894812, 621910, 3704174, 7087046, 4373879, 23558696, 41171126, 23396689, 116650532, 190010902, 101247815, 476808796, 736407602, 373431803, 1678517670, 2482516953, 1208979602, 5235742304, 7477415626
OFFSET
0,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..175 (terms n = 1..82 from R. H. Hardin)
EXAMPLE
Some solutions for n=5
..0..0..0..0..0..1..2....0..0..0..0..0..0..2....0..0..0..0..0..0..1
..0..0..0..1..1..1..2....0..0..1..1..1..1..2....0..0..0..1..1..1..2
..0..0..0..1..1..1..2....0..1..1..1..2..2..2....0..0..0..1..1..2..2
..1..1..1..1..2..2..2....0..1..1..1..2..2..2....1..1..1..1..1..2..2
..1..2..2..2..2..2..2....0..1..1..2..2..2..2....1..2..2..2..2..2..2
CROSSREFS
Column 7 of A201277.
Sequence in context: A147267 A071183 A025414 * A053360 A176963 A376295
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 29 2011
EXTENSIONS
a(0)=1 prepended by Alois P. Heinz, Mar 18 2024
STATUS
approved