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A258564 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum or central row sum equal to the central column sum 4
11532, 179776, 179776, 2826448, 4884100, 2826448, 44622400, 134652816, 134652816, 44622400, 702129040, 3749847696, 6542200832, 3749847696, 702129040, 11033401600, 103717490704, 321924603456, 321924603456, 103717490704 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
.........11532.........179776.........2826448.........44622400........702129040
........179776........4884100.......134652816.......3749847696.....103717490704
.......2826448......134652816......6542200832.....321924603456...15675466093600
......44622400.....3749847696....321924603456...28226268865600.2446055780403456
.....702129040...103717490704..15675466093600.2446055780403456
...11033401600..2859893618884.760019986771600
..173567878848.79025557095424
.2731694950656
LINKS
FORMULA
Empirical for column k:
k=1: [linear recurrence of order 36]
EXAMPLE
Some solutions for n=1 k=4
..0..0..0..0..0..1....0..0..0..0..1..2....0..0..0..0..1..0....0..0..0..0..0..0
..2..2..1..0..1..1....2..0..1..0..2..0....2..2..2..0..1..2....1..2..2..1..1..0
..1..1..0..0..2..0....1..1..2..0..1..0....0..1..1..0..0..1....1..2..0..0..2..1
CROSSREFS
Sequence in context: A201048 A236522 A235659 * A258561 A362216 A063061
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Jun 03 2015
STATUS
approved

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Last modified April 13 07:58 EDT 2024. Contains 371638 sequences. (Running on oeis4.)