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A264574 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change 1,0 1,1 0,-1 or -1,1. 1
3, 32, 224, 4104, 57265, 1133040, 16284544, 273793368, 4390726564, 71355343752, 1149012880464, 18568212596576, 299910893436736, 4834871657973568, 78019697845282880, 1258480482181398560, 20296382195740537248 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A264569.

LINKS

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

EXAMPLE

Some solutions for n=4

..1..2..6..4..8....1..2..6..4..8....1..5..6..7..8....1..5..3..4..8

..0..7.11..9..3....0..7.11..9..3....0.10..2..3..4....0..7..2.12.13

..5.15.16.14.18....5.12.16.14.18...11.15.13.14..9...11.15..6.14..9

.10.20.12.19.13...10.20.21.19.13...16.17.12.19.23...10.17.18.19.23

.21.25.17.27.28...15.25.17.24.28...21.25.26.27.18...21.16.26.27.28

.26.30.22.23.24...26.30.22.23.33...20.30.22.29.24...20.30.31.22.24

.31.32.33.34.29...31.32.27.34.29...31.32.33.34.28...25.32.33.34.29

CROSSREFS

Cf. A264569.

Sequence in context: A004256 A183457 A322234 * A002059 A028447 A081012

Adjacent sequences:  A264571 A264572 A264573 * A264575 A264576 A264577

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 17 2015

STATUS

approved

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Last modified May 27 21:12 EDT 2022. Contains 354110 sequences. (Running on oeis4.)