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A260069 Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00000111 1
5088, 13366, 42094, 89948, 185370, 660896, 1838884, 3846432, 10411860, 34278032, 85219868, 194549646, 586417692, 1722858971, 4107474218, 10494264900, 31635757784, 85184012548, 207122994200, 570030592938, 1645562710914 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A260070

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

CROSSREFS

Cf. A260070

Sequence in context: A271171 A116887 A034286 * A252143 A223400 A135842

Adjacent sequences:  A260066 A260067 A260068 * A260070 A260071 A260072

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 14 2015

STATUS

approved

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Last modified May 26 21:56 EDT 2022. Contains 354092 sequences. (Running on oeis4.)