A264369 Number of (5+1) X (n+1) arrays of permutations of 0..n*6+5 with each element having directed index change 0,0 0,2 1,0 or -1,-2.

1, 60, 3600, 54720, 831744, 16066704, 310358689, 5669414855, 103564894225, 1897896238940, 34780223170576, 635711773067072, 11619518840752384, 212144954220192048, 3873265512788926881, 70687878202585153191

Offset

1,2

Comments

Row 5 of A264364.

Links

R. H. Hardin, Table of n, a(n) for n = 1..48

Example

Some solutions for n=4
..0..8..9..1..2....0..1..2..3..4....7..1..0..3..2....0..8..2..3..4
..5..6.14..3..4...12..6..5..8..9...12..6.14..8..4....5..1..7..6..9
.10.18..7.13.12...10.18..7.11.14....5.11.10.13..9...17.18.10.13.14
.15.11.17.16.19...15.16.17.13.19...15.23.24.16.17...22.11.12.16.19
.27.28.20.21.24...27.28.29.21.22...27.28.22.18.19...15.28.20.23.24
.25.26.22.23.29...20.26.25.23.24...20.21.25.26.29...25.21.27.26.29

Crossrefs

Cf. A264364.

Sequence in context: A264947 A004297 A223657 * A053401 A267930 A267977

Adjacent sequences: A264366 A264367 A264368 * A264370 A264371 A264372

Keyword

nonn

Author

R. H. Hardin, Nov 12 2015

Status

approved