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A260362 Number of (n+2)X(n+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001111 0
48, 127, 912, 4633, 6144, 38370, 265120, 551542, 2092680, 17786146, 60491904, 183202732, 1313066840, 6986822950, 25056637336, 145821754612 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A260370

LINKS

Table of n, a(n) for n=1..16.

EXAMPLE

Some solutions for n=4

..0..0..0..0..0..1....0..1..0..0..0..1....0..1..1..1..1..0....1..0..0..0..0..0

..1..1..0..0..1..0....0..1..0..0..1..1....0..1..0..0..1..0....0..1..0..0..1..1

..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0

..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0

..0..1..0..0..1..1....0..1..0..0..1..0....0..1..0..0..1..1....1..1..0..0..1..1

..1..0..0..0..0..1....1..1..0..0..1..1....1..1..0..0..0..0....1..1..1..1..1..1

CROSSREFS

Cf. A260370

Sequence in context: A211726 A232938 A194952 * A114444 A044299 A044680

Adjacent sequences:  A260359 A260360 A260361 * A260363 A260364 A260365

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 23 2015

STATUS

approved

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Last modified January 25 16:01 EST 2022. Contains 350572 sequences. (Running on oeis4.)