The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A232680 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A232680

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays x(i,j) with row sums sum{j*x(i,j), j=1..k+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing
(history; published version)

#4 by R. H. Hardin at Wed Nov 27 16:37:11 EST 2013

STATUS

editing

approved

#3 by R. H. Hardin at Wed Nov 27 16:37:07 EST 2013

LINKS

R. H. Hardin, <a href="/A232680/b232680.txt">Table of n, a(n) for n = 1..30</a>

#2 by R. H. Hardin at Wed Nov 27 16:36:53 EST 2013

NAME

allocated for R. H. Hardin

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays x(i,j) with row sums sum{j*x(i,j), j=1..k+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing

DATA

86, 562, 562, 2985, 13266, 2985, 14027, 252071, 252071, 14027, 59228, 4171291, 18009666, 4171291, 59228, 229332, 60818628, 1103220626, 1103220626, 60818628, 229332, 831604, 797893589, 59208746393, 254263401284, 59208746393, 797893589

OFFSET

1,1

COMMENTS

Table starts

.....86.......562........2985........14027.......59228....229332.....831604

....562.....13266......252071......4171291....60818628.797893589.9620349150

...2985....252071....18009666...1103220626.59208746393

..14027...4171291..1103220626.254263401284

..59228..60818628.59208746393

.229332.797893589

.831604

EXAMPLE

Some solutions for n=2 k=4

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

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

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

KEYWORD

allocated

nonn,tabl

AUTHOR

R. H. Hardin, Nov 27 2013

STATUS

approved

editing

#1 by R. H. Hardin at Wed Nov 27 16:34:49 EST 2013

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved