A298885
Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.
Original entry on oeis.org
3, 23, 23, 73, 123, 243, 444, 897, 1801, 3462, 6669, 13291, 25762, 49483, 97860, 193033, 376031, 735990, 1440269, 2815283, 5522803, 10827092, 21196028, 41505035, 81298779, 159266998, 311969014, 611140770, 1197086348, 2345047342, 4593936013
Offset: 1
Some solutions for n=7
..0..1..0..0..1. .0..0..0..1..0. .0..0..0..1..0. .0..1..1..0..1
..0..1..1..1..0. .1..1..1..0..0. .1..1..1..1..0. .1..0..0..0..1
..0..1..1..1..0. .0..0..0..0..0. .0..1..1..1..0. .1..0..0..0..1
..1..1..1..1..1. .1..0..0..0..1. .0..1..1..1..1. .0..0..0..0..0
..0..0..0..1..1. .1..0..0..0..1. .1..0..0..1..1. .1..1..1..0..0
..1..1..1..1..0. .1..0..1..1..0. .0..0..1..1..0. .0..0..0..0..1
..0..0..0..1..0. .0..0..1..0..1. .1..1..0..1..0. .1..1..1..0..1
A298886
Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.
Original entry on oeis.org
5, 49, 34, 141, 243, 516, 814, 1646, 3312, 6565, 13040, 25941, 51679, 103895, 205265, 411011, 821599, 1643914, 3279755, 6573928, 13136700, 26293574, 52604464, 105288984, 210671989, 421821199, 844171966, 1689881070, 3382803573
Offset: 1
Some solutions for n=7
..0..1..0..0..1..1. .0..1..1..1..0..1. .0..1..1..0..0..0. .0..0..0..1..1..0
..1..0..0..0..0..0. .1..0..0..0..0..1. .0..0..0..1..1..1. .1..0..0..0..0..1
..0..0..0..1..0..1. .0..1..0..0..0..1. .1..1..0..0..0..0. .0..1..0..0..0..1
..1..1..1..1..0..1. .0..1..0..0..0..0. .0..0..0..0..0..1. .0..1..0..0..0..0
..0..1..1..1..0..1. .0..1..0..1..1..1. .1..1..0..0..0..1. .0..1..0..1..1..1
..0..1..1..1..1..0. .1..1..1..1..1..0. .0..0..0..1..1..0. .1..1..1..1..1..0
..1..0..0..1..1..1. .0..0..1..1..0..1. .1..1..0..1..0..1. .0..0..1..1..0..1
A298887
Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.
Original entry on oeis.org
8, 95, 63, 240, 444, 814, 1818, 3663, 7496, 16544, 33596, 70466, 148451, 311053, 653252, 1372584, 2873709, 6036087, 12668750, 26606071, 55876191, 117364939, 246515244, 517702247, 1087644299, 2284968402, 4799996646, 10083584000
Offset: 1
Some solutions for n=7
..0..1..0..1..0..0..1. .0..0..0..1..1..1..0. .0..0..1..0..0..1..1
..1..0..0..1..1..0..1. .1..0..0..0..0..0..1. .1..0..1..1..1..0..0
..0..1..1..1..0..1..0. .0..1..0..0..0..1..0. .1..0..0..0..1..1..1
..0..1..1..1..1..1..0. .0..1..0..0..0..1..0. .1..0..0..0..0..1..0
..1..1..1..1..0..1..1. .1..0..0..0..0..0..1. .0..0..0..0..1..0..0
..0..0..0..1..1..0..0. .1..0..1..0..1..0..1. .1..1..1..0..0..1..1
..1..1..1..0..0..1..0. .0..0..1..0..1..0..0. .0..0..0..1..1..0..1
A298884
Number of n X n 0..1 arrays with every element equal to 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero.
Original entry on oeis.org
0, 3, 15, 40, 123, 516, 1818, 7768, 41048, 242083, 1483959, 10171555
Offset: 1
Some solutions for n=7
..0..1..0..1..0..0..0. .0..1..1..0..0..1..1. .0..0..1..0..0..1..1
..1..0..0..1..1..1..1. .1..0..0..0..0..0..0. .1..0..1..1..1..0..0
..0..0..0..1..1..1..0. .1..0..0..0..1..0..1. .0..1..0..1..0..1..0
..0..0..1..1..1..1..0. .0..0..0..0..1..1..0. .0..1..1..1..1..1..1
..0..1..0..1..1..1..1. .0..0..1..1..0..1..0. .1..0..1..1..1..0..0
..0..0..1..1..0..0..0. .1..0..0..1..1..0..1. .1..0..1..1..1..0..1
..1..1..0..0..1..1..1. .1..0..1..0..0..1..0. .1..0..1..0..0..1..0
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