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A258562 Number of (n+2)X(2+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 1
179776, 4884100, 134652816, 3749847696, 103717490704, 2859893618884, 79025557095424, 2186180765718544, 60436066572750400, 1669986326796722064, 46157911722096725056, 1276016937808498835524, 35271105508345095065664 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A258564

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=1

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

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

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

CROSSREFS

Cf. A258564

Sequence in context: A056748 A247113 A186062 * A204787 A060232 A190380

Adjacent sequences:  A258559 A258560 A258561 * A258563 A258564 A258565

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 03 2015

STATUS

approved

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Last modified September 26 17:30 EDT 2021. Contains 347670 sequences. (Running on oeis4.)