login
A260369
Number of (n+2)X(7+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001111
1
2880, 4438, 13632, 32488, 37948, 98032, 265120, 390138, 774416, 2085610, 3676672, 6576428, 16343884, 32624460, 57557052, 130763122, 277382484, 506936080, 1070477816, 2319259576, 4413899664, 8938596854, 19280847812, 38024306356
OFFSET
1,1
COMMENTS
Column 7 of A260370
LINKS
EXAMPLE
Some solutions for n=4
..1..1..1..0..0..1..1..0..0....0..0..1..1..1..1..1..1..1
..0..0..1..0..0..0..0..0..0....0..0..0..0..1..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..0..0..1..0..0..1....0..1..0..0..0..0..0..0..0
..0..0..1..0..0..1..0..0..1....0..1..0..0..1..1..0..0..1
..0..0..1..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0
CROSSREFS
Sequence in context: A066174 A175750 A179703 * A134856 A066407 A184602
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 23 2015
STATUS
approved