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A302277
Number of n X 7 0..1 arrays with every element equal to 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
8, 98, 363, 1621, 14125, 72083, 384916, 3027442, 17837758, 105323556, 739401390, 4650704407, 28941532526, 193466816941, 1245437720868, 7947521451749, 52140138010011, 338093540539006, 2181939290185486, 14220546200647229
OFFSET
1,1
COMMENTS
Column 7 of A302278.
LINKS
EXAMPLE
Some solutions for n=5:
0 0 1 1 1 0 0 0 0 1 0 0 0 1 0 0 1 0 1 0 0
1 0 0 0 0 1 1 1 1 0 1 1 1 0 0 1 1 1 0 0 1
1 1 1 0 1 0 1 1 1 1 1 1 1 1 1 0 1 0 0 1 0
0 1 1 0 1 1 0 0 0 1 0 0 0 1 1 0 0 0 0 0 1
0 0 1 0 0 1 1 1 1 0 1 1 1 0 1 1 0 1 1 0 0
CROSSREFS
Cf. A302278.
Sequence in context: A365845 A292747 A083182 * A302727 A116267 A183334
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 04 2018
STATUS
approved