A263442 -id:A263442 - cp's OEIS frontend

A263440 Number of nX2 arrays of permutations of 0..n*2-1 with each element moved a city block distance of 0 or 3.

1, 1, 4, 25, 125, 633, 2532, 10288, 48776, 233776, 1080228, 4996113, 23080949, 107157345, 501507348, 2345998289, 10947914825, 51111745065, 238823109920, 1116507049088, 5221116919456, 24414616690816, 114158428564416

Offset: 1

R. H. Hardin, Oct 18 2015

nonn

Column 2 of A263442.

			Some solutions for n=4
..0..7....5..7....5..1....0..4....0..1....0..4....0..1....6..4....5..1....0..4
..2..6....2..6....2..3....2..6....7..6....7..6....7..3....2..3....7..6....2..3
..4..5....4..0....4..0....1..5....4..5....1..5....4..5....1..5....4..0....1..5
..3..1....3..1....6..7....3..7....3..2....3..2....6..2....0..7....3..2....6..7

R. H. Hardin, Table of n, a(n) for n = 1..210

Cf. A263442.

A263441 Number of nX3 arrays of permutations of 0..n*3-1 with each element moved a city block distance of 0 or 3.

Original entry on oeis.org

1, 4, 49, 1770, 52352, 1095488, 20725780, 482961978, 11815143411, 287647951708, 6707640025800, 157137244838144, 3691446486456184, 87568971473535200, 2068832357068222368, 48886506679849706508, 1152745723771781775300

Offset: 1

R. H. Hardin, Oct 18 2015

nonn

Column 3 of A263442.

			Some solutions for n=4
..9..8..7....0..6..2....0..6.11....7.10..2....5..8.11....5..1.11....7..8..3
..3..4..5....3.11.10....8..9.10....3.11..6...10..9..0....2..9..0....2.11..6
..6..2..1....5..7..9....5..7..1....1..0..9....6..7..3....6..7..3....5..0..1
..0.10.11....8..1..4....4..3..2....8..5..4....4..1..2....8.10..4....9.10..4

R. H. Hardin, Table of n, a(n) for n = 1..31

Cf. A263442.

cp's OEIS Frontend

A263440 Number of nX2 arrays of permutations of 0..n*2-1 with each element moved a city block distance of 0 or 3.

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