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A147027 Number of n X n binary arrays with all ones connected only in a 0100-0100-1111-0010 pattern in any orientation. 0
1, 1, 1, 9, 33, 81, 593, 11281, 273235, 6759617, 249956567, 17607387437, 1915544919591, 282005360821455 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
LINKS
EXAMPLE
Maximal 8 X 8 example
.0.0.1.0.0.0.1.0
.1.1.1.1.0.0.1.1
.0.1.0.0.1.1.1.0
.0.1.0.0.0.0.1.0
.0.0.1.0.0.1.0.0
.0.0.1.0.1.1.0.0
.1.1.1.1.0.1.1.1
.0.1.0.0.0.1.0.0
CROSSREFS
Sequence in context: A101990 A147170 A146823 * A146256 A005920 A020324
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved

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Last modified May 19 11:03 EDT 2024. Contains 372683 sequences. (Running on oeis4.)