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A264539 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change -2,-2 -1,0 0,1 or 1,0. 1
0, 100, 696, 8180, 119810, 1293264, 15187422, 179414540, 2052910368, 23919502368, 277388965381, 3208620078246, 37242102968460, 431510537455275, 5000791870294019, 57981675317696894, 671993281653567377 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 6 of A264534.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..206

EXAMPLE

Some solutions for n=4

.12..6..7..8..3....5.13..1..2..3....5..6..7..8..9....5..0..1..2..3

..0..1..2.13..4....0.11.12..7..4....0..1..2..3..4...17.18.12..7..4

..5.10.24.18..9...15..6.17..8..9...22.10.24.12.19...15..6.24..8..9

.20.11.16.17.14...10.21.16.23.14...20.11.16.13.14...10.11.29.13.14

.15.33.27.28.19...32.20.34.18.19...15.33.17.18.23...32.16.27.22.19

.30.21.22.23.34...30.31.22.33.24...30.21.32.27.34...20.21.26.23.34

.25.26.31.32.29...25.26.27.28.29...25.26.31.28.29...25.30.31.28.33

CROSSREFS

Cf. A264534.

Sequence in context: A250708 A235856 A235850 * A233635 A233628 A030024

Adjacent sequences:  A264536 A264537 A264538 * A264540 A264541 A264542

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 17 2015

STATUS

approved

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Last modified November 14 14:43 EST 2019. Contains 329126 sequences. (Running on oeis4.)