The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A232874 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A232874

Number of (n+1)X(4+1) 0..1 arrays x(i,j) with row sums sum{j^2*x(i,j), j=1..4+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing
(history; published version)

#3 by R. H. Hardin at Sun Dec 01 17:19:23 EST 2013

STATUS

editing

approved

#2 by R. H. Hardin at Sun Dec 01 17:19:21 EST 2013

NAME

allocated for R. H. Hardin

Number of (n+1)X(4+1) 0..1 arrays x(i,j) with row sums sum{j^2*x(i,j), j=1..4+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing

DATA

39, 311, 2715, 21639, 133532, 706994, 3457755, 16257008, 72992744, 309583532, 1229822682, 4620454491, 16559895238, 56785677343, 186875868230

OFFSET

1,1

COMMENTS

Column 4 of A232877

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, Dec 01 2013

STATUS

approved

editing

#1 by R. H. Hardin at Sun Dec 01 17:16:22 EST 2013

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved