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A264626 Number of (n+1)X(6+1) arrays of permutations of 0..n*7+6 with each element having directed index change -2,0 -1,0 0,-1 or 1,1. 1
0, 37, 393, 2736, 37225, 604916, 7201068, 81028312, 992539392, 12531858912, 152233949504, 1825908062080, 22176607035392, 270645955787776, 3285536600205312, 39798931437072384, 482959453126127616 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A264628.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..184

EXAMPLE

Some solutions for n=4

..1..2..3..4..5..6.20....7..2.16.10..5..6.13....1.15..9..4.11..6.13

..8..0.16.11.12.13.27....8..0..1.11..3..4.27....8..0.16..2..3.19..5

.15..7.23..9.10.33.34...15.22.30..9.32.20.12...21..7.17.18.10.20.12

.28.14.30.31.17.18.19...28.14.24.25.17.18.19...28.14.24.31.32.27.34

.29.21.22.32.24.25.26...29.21.31.23.33.34.26...29.30.22.23.33.25.26

CROSSREFS

Cf. A264628.

Sequence in context: A124337 A027944 A283629 * A201789 A115926 A083818

Adjacent sequences:  A264623 A264624 A264625 * A264627 A264628 A264629

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 19 2015

STATUS

approved

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Last modified January 26 11:26 EST 2020. Contains 331279 sequences. (Running on oeis4.)