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A251962 T(n,k)=Number of (n+2)X(k+2) 0..4 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime 7
5484, 11375, 11375, 27550, 26027, 27550, 101307, 149744, 149744, 101307, 417045, 1201953, 2124017, 1201953, 417045, 1957438, 10509427, 30761067, 30761067, 10509427, 1957438, 10045910, 94160979, 458358230, 736975310, 458358230 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
.......5484........11375...........27550...........101307............417045
......11375........26027..........149744..........1201953..........10509427
......27550.......149744.........2124017.........30761067.........458358230
.....101307......1201953........30761067........736975310.......18033590706
.....417045.....10509427.......458358230......18033590706......731661524537
....1957438.....94160979......6886698489.....446277561777....30091466242073
...10045910....839633727....102836207351...10977331490335..1225476789960343
...53241089...7484563854...1538051208196..270151507070538.49988074220671475
..284500818..66822646537..23018111175603.6654368971046793
.1525692838.596375268131.344296818674851
LINKS
EXAMPLE
Some solutions for n=2 k=4
..0..1..1..1..3..1....1..1..1..1..1..1....1..3..1..3..1..1....0..1..1..1..1..3
..1..1..1..1..1..3....1..1..3..1..3..1....0..1..1..1..1..1....1..1..3..1..3..3
..1..1..1..1..1..1....0..1..1..1..3..1....1..1..3..3..1..1....1..1..1..1..1..1
..1..3..1..1..3..1....1..3..1..1..1..1....1..1..1..1..1..1....3..3..1..3..3..1
CROSSREFS
Sequence in context: A234685 A031572 A045108 * A251956 A232153 A203791
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 11 2014
STATUS
approved

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Last modified May 29 22:36 EDT 2024. Contains 372954 sequences. (Running on oeis4.)