|
| |
|
|
A251846
|
|
Number of (n+2)X(1+2) 0..3 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime
|
|
1
|
|
|
|
2148, 4953, 15899, 67209, 327193, 1697028, 9016304, 48280085, 259123809, 1392132935, 7481800749, 40211989018, 216132151786, 1161698250394, 6244080094399, 33561655362846, 180392638316345, 969604161599181
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
Column 1 of A251852
|
|
|
LINKS
|
R. H. Hardin, Table of n, a(n) for n = 1..210
|
|
|
EXAMPLE
|
Some solutions for n=4
..3..2..0....1..3..1....1..0..1....3..1..1....1..1..3....1..3..3....1..0..1
..2..3..2....1..1..1....1..1..0....1..1..1....1..1..1....1..3..3....1..1..3
..2..0..1....1..1..1....3..1..1....3..1..1....1..1..1....1..1..1....1..1..1
..3..0..0....1..1..1....1..1..1....1..1..1....1..1..1....3..1..1....3..1..1
..2..2..1....3..1..3....3..3..1....1..1..1....1..3..3....1..3..3....1..1..3
..0..3..2....1..3..3....3..1..3....1..3..3....3..1..1....3..3..1....1..3..3
|
|
|
CROSSREFS
|
Sequence in context: A251870 A291135 A251852 * A236150 A252126 A192771
Adjacent sequences: A251843 A251844 A251845 * A251847 A251848 A251849
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
R. H. Hardin, Dec 09 2014
|
|
|
STATUS
|
approved
|
| |
|
|
