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A201499 Number of n X n 0..1 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 1
2, 2, 6, 8, 40, 58, 338, 526, 3334, 5448, 36168, 61108, 417920, 723354, 5054148, 8908546, 63260780, 113093022, 813360930, 1470597342, 10685501398, 19499227828, 142885700222, 262754984020, 1939096937920, 3589093760726, 26647143177214 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A201503

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..39

EXAMPLE

Some solutions for n=4

..0..0..0..1....0..0..0..0....0..0..0..1....0..0..0..1....0..0..0..0

..0..0..0..1....0..0..1..1....0..0..1..1....0..0..0..1....0..0..0..1

..0..1..1..1....0..1..1..1....0..0..1..1....0..0..1..1....0..1..1..1

..0..1..1..1....0..1..1..1....0..1..1..1....1..1..1..1....1..1..1..1

CROSSREFS

Sequence in context: A079494 A169970 A334499 * A131553 A277510 A169800

Adjacent sequences:  A201496 A201497 A201498 * A201500 A201501 A201502

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 02 2011

STATUS

approved

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Last modified July 2 09:21 EDT 2020. Contains 335398 sequences. (Running on oeis4.)