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.

Previous Showing 11-13 of 13 results.

A264681 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change -1,-1 1,0 -1,-2 -2,-2 or 0,1.

Original entry on oeis.org

0, 108, 2417, 43131, 1449467, 43095017, 1095840260, 28215481268, 738782370243, 19083862672909, 487695637623505, 12462928299470408, 318459601523206145, 8122732708229887832, 206973840286092630463, 5272926892002041935804
Offset: 1

Views

Author

R. H. Hardin, Nov 20 2015

Keywords

Comments

Row 6 of A264676.

Examples

			Some solutions for n=4
..6..0..1..9..3....6.13..1..2..3....6..8..1..9..3....6..7..8..9..3
.11.18..2..7..4....0.18.19..7..4....0..5..2.14..4....0..1..2.14..4
..5.10.19..8.13....5.10.11..8..9...22.17..7.12.13....5.10.24.12.13
.22.15.12.17.14...22.15.12.17.14...10.11.23.24.18...22.11.23.17.18
.26.16.28.29.23...27.16.28.29.23...15.16.34.29.19...15.16.34.29.19
.20.21.34.27.24...20.21.26.34.24...20.21.26.27.28...20.21.26.27.28
.25.30.31.32.33...25.30.31.32.33...25.30.31.32.33...25.30.31.32.33
		

Crossrefs

Cf. A264676.

A264669 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 1,0 -1,-2 -2,-2 or 0,1.

Original entry on oeis.org

0, 2, 34, 890, 123222, 43095017, 40765995197, 117336061482333
Offset: 1

Views

Author

R. H. Hardin, Nov 20 2015

Keywords

Comments

Diagonal of A264676.

Examples

			Some solutions for n=4
..6..0..8..9..3....6.13..1..2..3....6..0..1..9..3....7.13..1..2..3
.17..1..2..7..4....0.12.14..7..4...12..5..2..7..4....0.12..6.14..4
..5.10.19.12.13....5.10.11..8..9...17.18.11..8.13....5.17.19..8..9
.22.11.16.24.14...21.23.16.24.18...10.23.16.24.14...10.11.16.24.18
.15.20.21.18.23...15.20.17.22.19...15.20.21.22.19...15.20.21.22.23
		

Crossrefs

Cf. A264676.

A264682 Number of (7+1)X(n+1) arrays of permutations of 0..n*8+7 with each element having directed index change -1,-1 1,0 -1,-2 -2,-2 or 0,1.

Original entry on oeis.org

0, 264, 9976, 291315, 17406354, 918298857, 40765995197, 1834679734692, 84286370436052, 3803767919559602, 169217277043021433
Offset: 1

Views

Author

R. H. Hardin, Nov 20 2015

Keywords

Comments

Row 7 of A264676.

Examples

			Some solutions for n=3
.10..6..1..2....6..0..1..2...10.11..1..2....6..0..1..2...10..0..1..2
..0..4.11..3....9..4..5..3....0.15..5..3....9..4.11..3....9..4.11..3
.18..5..9..7...13.19.15..7....4..8..6..7...13..5.15..7...18..5..6..7
..8.12.13.14....8.12.10.11...17..9.13.14....8.12.10.14....8.12.13.14
.22.23.17.15...26.16.14.18...12.22.23.18...22.16.17.18...22.27.17.15
.16.20.21.19...30.17.21.22...16.27.21.19...25.26.27.19...16.20.21.19
.30.31.25.26...20.31.25.23...20.31.25.26...20.21.31.23...29.31.25.23
.24.28.29.27...24.28.29.27...24.28.29.30...24.28.29.30...24.28.26.30
		

Crossrefs

Cf. A264676.
Previous Showing 11-13 of 13 results.