cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A264555 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change -1,1 -1,2 1,0 or 0,-1.

Original entry on oeis.org

0, 44, 400, 4640, 105081, 1994830, 29691127, 480994368, 8117368800, 132754460552, 2133045608920, 34553147199456, 560889832726788, 9059789552261840, 146150531190902752, 2359511442598185984, 38084486000051713136
Offset: 1

Views

Author

R. H. Hardin, Nov 17 2015

Keywords

Comments

Row 6 of A264550.

Examples

			Some solutions for n=4
..1..5..6..4..8....1..2..6..4..8....1..2..3..7..8....1..2..3..4..7
..0..7..2..3.13....0..7.11..3.13....0.10.11.12..4....0.10.11..9.12
.11.15.16.14..9....5.12.16.14..9....5..6.13.14..9....5..6.15..8.18
.10.20.12.19.23...10.17.21.19.22...16.17.21.19.22...16.17.20.13.14
.21.22.17.18.28...15.25.26.18.28...15.25.26.18.27...21.22.23.27.19
.26.27.30.31.24...20.27.30.23.24...20.30.28.23.24...26.30.28.31.24
.25.32.33.34.29...31.32.33.34.29...31.32.33.34.29...25.32.33.34.29
		

Crossrefs

Cf. A264550.

A264556 Number of (7+1)X(n+1) arrays of permutations of 0..n*8+7 with each element having directed index change -1,1 -1,2 1,0 or 0,-1.

Original entry on oeis.org

0, 93, 1204, 23140, 813473, 25172836, 591482528, 15554895920, 426023121887, 11212094301173, 288664400022091, 7526121840247476, 196724860860294913, 5099876575111214715, 131971387912281226253, 3420386371154190796380
Offset: 1

Views

Author

R. H. Hardin, Nov 17 2015

Keywords

Comments

Row 7 of A264550.

Examples

			Some solutions for n=4
..1..2..3..4..7....1..2..5..6..8....1..2..3..4..8....1..2..6..4..8
..0.10..8.11.13....0..7.10..3..4....0..7.11.12.13....0..7.10..3.12
..5..6.15.14..9...11.12.15.17..9....5..6.15.16..9....5.15.13.14..9
.16.20.12.22.23...16.20.18.13.14...10.17.20.19.14...16.11.20.19.23
.21.25.17.18.19...21.22.23.24.19...21.22.23.18.28...21.22.17.18.27
.26.27.30.32.24...26.27.30.31.33...26.27.30.32.24...26.30.28.29.24
.31.35.33.28.29...25.32.35.28.29...25.35.33.37.29...25.35.33.37.38
.36.37.38.39.34...36.37.38.39.34...36.31.38.39.34...36.31.32.39.34
		

Crossrefs

Cf. A264550.

A264543 Number of (n+1)X(n+1) arrays of permutations of 0..(n+1)^2-1 with each element having directed index change -1,1 -1,2 1,0 or 0,-1.

Original entry on oeis.org

0, 2, 16, 216, 14852, 1994830, 591482528, 510948245264, 1135318355003028, 6257173857277450930
Offset: 1

Views

Author

R. H. Hardin, Nov 17 2015

Keywords

Comments

Diagonal of A264550.

Examples

			Some solutions for n=4
..1..5..6..4..8....1..5..3..4..7....1..2..3..4..7....1..2..3..4..7
..0..7..2..3.12....0.10..2..9.12....0.10..8..9.12....0.10..8.11.12
.11.15.16.14..9...11..6.13..8.17....5..6.13.14.18....5..6.13.17..9
.10.20.18.13.23...16.20.18.21.14...16.11.20.21.23...16.20.18.21.14
.21.22.17.24.19...15.22.23.24.19...15.22.17.24.19...15.22.23.24.19
		

Crossrefs

Cf. A264550.
Previous Showing 11-13 of 13 results.