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A232614 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays x(i,j) with every row sum{j*x(i,j), j=1..k+1} equal, and every column sum{i*x(i,j), i=1..n+1} equal 6
5, 5, 5, 3, 13, 3, 9, 13, 13, 9, 11, 23, 61, 23, 11, 3, 45, 93, 93, 45, 3, 23, 105, 105, 713, 105, 105, 23, 37, 297, 493, 1521, 1521, 493, 297, 37, 3, 583, 1927, 6561, 40917, 6561, 1927, 583, 3, 95, 1419, 16121, 53539, 193015, 193015, 53539, 16121, 1419, 95, 159 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

..5....5......3.......9.......11........3.......23.......37.........3.......95

..5...13.....13......23.......45......105......297......583......1419.....4299

..3...13.....61......93......105......493.....1927....16121.....63829...119777

..9...23.....93.....713.....1521.....6561....53539...912585...2788563.18652349

.11...45....105....1521....40917...193015..1135417.14754807.209747055

..3..105....493....6561...193015.10996137.58912359

.23..297...1927...53539..1135417.58912359

.37..583..16121..912585.14754807

..3.1419..63829.2788563

.95.4299.119777

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..83

EXAMPLE

Some solutions for n=3 k=4

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

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

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

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

CROSSREFS

Sequence in context: A302552 A193887 A196998 * A254609 A133707 A171372

Adjacent sequences:  A232611 A232612 A232613 * A232615 A232616 A232617

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Nov 26 2013

STATUS

approved

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Last modified January 25 19:09 EST 2020. Contains 331249 sequences. (Running on oeis4.)