The On-Line Encyclopedia of Integer Sequences (OEIS)

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Revision History for A252344

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Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 3 5 6 or 8 and every 3X3 diagonal and antidiagonal sum equal to 0 3 5 6 or 8
(history; published version)

#4 by R. H. Hardin at Tue Dec 16 20:42:48 EST 2014

STATUS

editing

approved

#3 by R. H. Hardin at Tue Dec 16 20:42:42 EST 2014

NAME

allocated for R. H. Hardin

Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row and column sum not equal to 0 3 5 6 or 8 and every 3X3 diagonal and antidiagonal sum equal to 0 3 5 6 or 8

DATA

562, 1386, 6986, 40756, 592230, 11021412, 249626459, 15316883573, 776195661759, 48304754871426, 11765535679080573, 1482895646097699360, 245504085165829558660, 254091374667549037155557

OFFSET

1,1

COMMENTS

Diagonal of A252352

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, Dec 16 2014

STATUS

approved

editing

#2 by R. H. Hardin at Tue Dec 16 20:41:01 EST 2014

KEYWORD

allocating

allocated

#1 by R. H. Hardin at Tue Dec 16 20:41:01 EST 2014

NAME

allocated for R. H. Hardin

KEYWORD

allocating

STATUS

approved