A301603
Number of nX3 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
Original entry on oeis.org
1, 2, 2, 8, 13, 26, 55, 154, 356, 884, 2161, 5440, 13511, 33780, 84398, 211338, 528999, 1325014, 3319005, 8315948, 20836784, 52214530, 130847203, 327910100, 821772985, 2059471558, 5161348174, 12935209836, 32417941793, 81245379630, 203616360639
Offset: 1
Some solutions for n=5
..0..0..0. .0..0..1. .0..0..0. .0..1..1. .0..1..1. .0..0..0. .0..0..0
..0..0..0. .0..0..0. .0..1..0. .1..1..1. .1..1..1. .0..0..0. .0..1..0
..0..1..0. .0..1..0. .0..0..0. .1..0..1. .1..0..1. .0..1..0. .0..0..0
..0..0..0. .0..0..0. .0..1..0. .1..1..1. .1..1..1. .0..0..0. .1..1..1
..0..0..0. .0..0..0. .0..0..0. .0..1..1. .1..1..0. .1..0..0. .1..1..1
A301604
Number of nX4 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
Original entry on oeis.org
1, 3, 8, 25, 65, 226, 755, 2539, 8794, 30539, 106401, 371492, 1298761, 4544515, 15909548, 55710973, 195119181, 683443550, 2394043807, 8386437959, 29378680446, 102918338575, 360542635085, 1263055770396, 4424759215289, 15500920405007
Offset: 1
Some solutions for n=5
..0..0..1..1. .0..1..1..1. .0..0..1..1. .0..0..1..1. .0..1..1..1
..0..0..1..1. .1..1..0..1. .0..0..1..1. .0..0..1..1. .1..1..0..1
..1..1..1..1. .1..1..1..1. .1..0..0..0. .0..0..1..1. .1..1..1..1
..1..1..0..0. .0..0..0..0. .0..0..1..0. .0..0..1..1. .1..0..1..1
..1..1..0..0. .0..0..0..0. .0..0..0..0. .0..0..1..1. .1..1..1..1
A301605
Number of nX5 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
Original entry on oeis.org
1, 6, 13, 65, 330, 1297, 6393, 30904, 154041, 764894, 3804884, 18978589, 94697319, 472770928, 2360757090, 11789229577, 58877258002, 294049444613, 1468594070621, 7334774136424, 36633069686965, 182962072923069, 913796219872826
Offset: 1
Some solutions for n=5
..0..0..0..1..1. .0..0..0..0..1. .0..0..0..0..1. .0..0..1..1..1
..0..0..0..1..1. .0..0..1..0..0. .0..1..1..0..0. .0..0..1..1..1
..0..1..0..0..0. .1..0..0..0..0. .0..1..1..0..0. .0..1..0..0..0
..0..0..0..1..0. .0..0..1..1..1. .0..0..0..1..1. .0..0..0..1..0
..0..0..0..0..0. .0..0..1..1..1. .1..0..0..1..1. .0..0..0..0..0
A301606
Number of nX6 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
Original entry on oeis.org
1, 10, 26, 226, 1297, 8888, 60841, 421168, 2940940, 20639456, 145157471, 1021952648, 7197614571, 50704160874, 357234289578, 2517047832160, 17735602594473, 124970744650942, 880592489506775, 6205028171908948
Offset: 1
Some solutions for n=5
..0..0..0..0..1..0. .0..0..0..1..1..1. .0..0..1..1..1..0. .0..0..0..0..0..1
..0..1..0..0..0..1. .0..1..0..1..0..1. .0..0..1..0..1..1. .0..1..0..1..0..0
..0..0..0..1..0..0. .0..0..0..1..1..1. .0..0..1..1..1..1. .0..0..0..0..0..0
..0..1..0..0..1..0. .1..1..1..0..1..1. .1..1..1..0..0..0. .0..0..1..0..1..1
..0..0..0..0..0..0. .1..1..1..1..1..1. .1..1..1..0..0..0. .0..0..0..0..1..1
A301607
Number of nX7 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
Original entry on oeis.org
1, 21, 55, 755, 6393, 60841, 591585, 5880829, 58383932, 585233819, 5854941545, 58759934077, 589360075403, 5914609427757, 59355963113549, 595731234612875, 5979121155775603, 60011713256358774, 602331412174313879
Offset: 1
Some solutions for n=5
..0..0..1..1..0..0..0. .0..0..0..0..0..0..1. .0..0..0..0..0..1..1
..0..0..1..1..0..1..0. .0..0..1..1..0..0..0. .0..0..1..0..0..1..1
..0..0..1..1..0..0..0. .1..0..1..1..0..1..0. .1..1..0..0..0..1..1
..1..1..0..1..1..1..1. .0..0..1..1..0..0..0. .1..1..0..1..0..0..0
..1..1..1..1..0..1..1. .0..0..1..1..0..0..1. .1..1..0..0..0..0..0
A301602
Number of n X n 0..1 arrays with every element equal to 0, 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.
Original entry on oeis.org
1, 2, 2, 25, 330, 8888, 591585, 83224304, 23865691820, 14092825824108
Offset: 1
Some solutions for n=5
..0..0..1..1..1. .0..0..1..1..1. .0..1..1..1..0. .0..0..1..1..1
..0..0..1..0..1. .0..0..1..0..1. .1..1..0..1..1. .0..0..1..1..1
..0..0..1..1..1. .0..0..1..1..1. .1..0..1..1..1. .1..1..1..0..1
..1..1..0..1..1. .1..1..0..0..0. .1..1..1..0..1. .1..1..0..1..1
..1..1..1..1..1. .1..1..0..0..0. .0..1..1..1..1. .1..1..1..1..0
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