A220616
Number of ways to reciprocally link elements of an n X 3 array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.
Original entry on oeis.org
3, 21, 125, 765, 4657, 28373, 172833, 1052829, 6413369, 39067429, 237981569, 1449678893, 8830805161, 53793374581, 327685538769, 1996115937021, 12159458878905, 74070066514885, 451202212873441, 2748525099013581
Offset: 1
Some solutions for n=3 0=self 1=nw 3=ne 4=w 6=e 7=sw 9=se (reciprocal directions total 10):
..0..6..4....0..7..0....0..7..0....0..0..0....6..4..0....0..6..4....0..9..7
..0..6..4....3..6..4....3..7..7....0..9..7....0..7..0....6..4..0....0..3..1
..0..0..0....0..6..4....3..3..0....0..3..1....3..0..0....6..4..0....6..4..0
A220617
Number of ways to reciprocally link elements of an nX4 array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.
Original entry on oeis.org
5, 87, 1189, 17084, 243119, 3466455, 49406943, 704243629, 10038098456, 143080761421, 2039439299333, 29069688249415, 414352491974681, 5906082889319188, 84183915242486395, 1199937711608731991
Offset: 1
Some solutions for n=3 0=self 1=nw 3=ne 4=w 6=e 7=sw 9=se (reciprocal directions total 10)
..0..9..6..4....0..0..6..4....0..6..4..0....9..7..0..0....9..7..0..0
..0..7..1..0....0..0..0..0....0..0..0..7....3..1..6..4....3..1..6..4
..3..0..0..0....0..0..6..4....0..0..3..0....0..0..0..0....0..6..4..0
A220618
Number of ways to reciprocally link elements of an nX5 array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.
Original entry on oeis.org
8, 317, 9176, 282777, 8608738, 262680517, 8011414792, 244357686173, 7453056468816, 227323314349577, 6933510501158596, 211476640729594693, 6450176661330373022, 196734631145079828705, 6000535646826871036976
Offset: 1
Some solutions for n=3 0=self 1=nw 3=ne 4=w 6=e 7=sw 9=se (reciprocal directions total 10)
..0..0..9..9..0....0..0..0..6..4....6..4..7..0..0....0..0..6..4..0
..0..7..0..1..1....0..6..4..9..0....9..3..0..9..0....9..6..4..6..4
..3..0..6..4..0....0..0..0..0..1....0..1..0..0..1....0..1..0..0..0
A220619
Number of ways to reciprocally link elements of an nX6 array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.
Original entry on oeis.org
13, 1215, 76955, 5280827, 356768525, 24177895648, 1637496710797, 110916199227139, 7512747980759983, 508867505795261823, 34467532553765146717, 2334617570886588879553, 158132555108084876751600
Offset: 1
Some solutions for n=3 0=self 1=nw 3=ne 4=w 6=e 7=sw 9=se (reciprocal directions total 10)
..6..4..0..6..4..0....0..7..9..7..0..0....9..9..9..0..6..4....6..4..9..0..9..0
..0..9..7..9..9..0....3..7..3..1..6..4....0..1..1..1..7..0....9..9..0..1..7..1
..0..3..1..0..1..1....3..0..0..6..4..0....0..6..4..3..6..4....0..1..1..3..0..0
A220620
Number of ways to reciprocally link elements of an nX7 array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.
Original entry on oeis.org
21, 4565, 624227, 93905509, 13864972277, 2054706174413, 304265433695569, 45062687311719797, 6673721691080067317, 988374130647554935157, 146377412047334158410357, 21678380394232186381827093
Offset: 1
Some solutions for n=3 0=self 1=nw 3=ne 4=w 6=e 7=sw 9=se (reciprocal directions total 10)
..0..7..9..0..0..0..7....0..7..6..4..6..4..0....0..7..0..0..0..9..0
..3..0..7..1..7..3..0....3..0..0..0..0..6..4....3..0..9..9..6..4..1
..0..3..0..3..6..4..0....6..4..0..0..0..0..0....0..6..4..1..1..0..0
A220622
Number of ways to reciprocally link elements of an 3 X n array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.
Original entry on oeis.org
1, 22, 125, 1189, 9176, 76955, 624227, 5131406, 41957895, 343809419, 2814822600, 23053276257, 188779537161, 1545969533334, 12660108907789, 103675885828389, 849017313171328, 6952739324271787, 56937068599653211, 466266655043137726
Offset: 1
Some solutions for n=3 0=self 1=nw 3=ne 4=w 6=e 7=sw 9=se (reciprocal directions total 10):
..6..4..0....0..6..4....0..7..0....0..0..0....6..4..0....0..7..0....0..7..0
..0..0..0....0..6..4....3..6..4....0..0..0....9..9..0....3..6..4....3..0..7
..0..0..0....6..4..0....0..6..4....0..6..4....0..1..1....0..0..0....0..3..0
A220623
Number of ways to reciprocally link elements of an 4Xn array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.
Original entry on oeis.org
1, 71, 765, 17084, 282777, 5280827, 93905509, 1703300073, 30648000256, 553256525421, 9974206108397, 179912817659011, 3244530759637569, 58516690759430228, 1055339507419304093, 19033159346284815815
Offset: 1
Some solutions for n=3 0=self 1=nw 3=ne 4=w 6=e 7=sw 9=se (reciprocal directions total 10)
..0..6..4....6..4..0....6..4..0....0..6..4....0..7..0....0..0..7....9..9..0
..0..6..4....6..4..0....0..9..0....0..9..0....3..9..0....0..3..0....0..1..1
..0..7..7....0..0..0....9..0..1....0..0..1....0..0..1....9..7..0....6..4..0
..3..3..0....0..6..4....0..1..0....0..0..0....6..4..0....3..1..0....6..4..0
A220624
Number of ways to reciprocally link elements of an 5Xn array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.
Original entry on oeis.org
1, 228, 4657, 243119, 8608738, 356768525, 13864972277, 553125347136, 21831846871613, 865461975018339, 34247958158855874, 1356237159188241529, 53691862459540232153, 2125854494007156918632, 84166119627538600335289
Offset: 1
Some solutions for n=3 0=self 1=nw 3=ne 4=w 6=e 7=sw 9=se (reciprocal directions total 10)
..9..0..0....0..7..0....6..4..0....0..7..0....0..6..4....0..0..7....0..6..4
..0..1..0....3..7..0....0..0..0....3..7..0....0..9..0....0..3..0....0..7..0
..6..4..7....3..6..4....0..6..4....3..6..4....0..0..1....0..9..0....3..7..0
..9..3..0....0..7..7....0..6..4....6..4..0....6..4..0....6..4..1....3..0..0
..0..1..0....3..3..0....0..6..4....6..4..0....0..0..0....0..6..4....6..4..0
A220625
Number of ways to reciprocally link elements of an 6Xn array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.
Original entry on oeis.org
1, 733, 28373, 3466455, 262680517, 24177895648, 2054706174413, 180411767818111, 15630369162961753, 1361611598697855401, 118348460320274885509, 10296062072472866977053, 895398179175506044479552
Offset: 1
Some solutions for n=3 0=self 1=nw 3=ne 4=w 6=e 7=sw 9=se (reciprocal directions total 10)
..0..6..4....6..4..0....0..6..4....0..0..0....0..9..0....0..0..0....9..6..4
..0..0..0....6..4..0....9..9..0....0..9..0....9..7..1....0..0..0....0..1..7
..0..7..0....0..0..0....0..1..1....0..7..1....3..1..7....6..4..0....0..3..0
..3..7..0....9..7..0....6..4..7....3..0..0....0..3..0....6..4..7....0..6..4
..3..0..0....3..1..0....0..3..0....9..7..0....0..7..0....0..3..0....0..6..4
..6..4..0....0..6..4....0..6..4....3..1..0....3..0..0....0..0..0....0..6..4
A220626
Number of ways to reciprocally link elements of an 7Xn array either to themselves or to exactly one horizontal, diagonal and antidiagonal neighbor.
Original entry on oeis.org
1, 2356, 172833, 49406943, 8011414792, 1637496710797, 304265433695569, 58792186589810692, 11178980566694533181, 2139705888320467053783, 408438850253554118760672, 78052060676212571885932839
Offset: 1
Some solutions for n=3 0=self 1=nw 3=ne 4=w 6=e 7=sw 9=se (reciprocal directions total 10)
..0..7..0....0..9..0....0..7..0....0..7..0....0..0..0....0..6..4....0..6..4
..3..9..0....0..7..1....3..7..0....3..7..0....0..7..0....6..4..0....6..4..0
..0..9..1....3..0..0....3..6..4....3..7..0....3..7..0....9..7..0....0..7..0
..0..7..1....0..6..4....0..9..0....3..7..0....3..6..4....3..1..0....3..0..0
..3..7..7....0..7..0....6..4..1....3..0..7....6..4..0....0..6..4....0..6..4
..3..3..0....3..9..0....0..7..0....0..3..0....0..7..7....0..9..0....0..9..7
..6..4..0....6..4..1....3..0..0....0..0..0....3..3..0....0..0..1....0..3..1
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