A264221 Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 0,1 1,0 -1,0 or 0,-2.

64, 3610, 97520, 2407816, 68008846, 1883268032, 51345531360, 1411162065495, 38813397148320, 1066027094762736, 29288688616590792, 804848533573703464, 22115072006086377880, 607663815006822489585, 16697331537936058632432

Offset

1,1

Comments

Row 4 of A264217.

Links

R. H. Hardin, Table of n, a(n) for n = 1..183

Example

Some solutions for n=3
..0..3..1..2....0..1..2..7....4..5..6..3....2..0..1..3....2..0..1..7
..8..7..5.11....6..4..5..3....0..1..2..7....4..9..6.11....8..9..6..3
..4..9..6.10....8..9.10.15....8.11..9.10....8..5.10..7....4..5.10.11
.12.15.13.14...16.13.18.11...16.15.13.14...16.17.14.15...14.13.18.19
.16.17.18.19...12.17.14.19...12.17.18.19...12.13.18.19...12.16.17.15

Crossrefs

Cf. A264217.

Sequence in context: A283855 A283413 A264210 * A232842 A282314 A228984

Adjacent sequences: A264218 A264219 A264220 * A264222 A264223 A264224

Keyword

nonn

Author

R. H. Hardin, Nov 08 2015

Status

approved