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A264533 Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having directed index change -2,-2 -1,0 0,1 or 1,0. 1
1, 16, 673, 15028, 634896, 15187422, 434877820, 12164306720, 324326909569, 8774823585744, 234456940197397, 6265839804921197, 166204669209067429, 4417764189776673340, 116848264132458500949, 3093181607731739407275 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 7 of A264534.
LINKS
EXAMPLE
Some solutions for n=4
.18.19.10.11.22.23..5..6....8..9.10..2.12.23..5..6...18.19.20..2.22.23..5..6
..0..1..2..3..4.21.13..7....0..1.28..3..4.21.22..7....0..1..9..3..4.31.13..7
..8..9.26.27.12.20.14.15...34.25.36.11.19.13.14.15....8.35.10.11.12.39.14.15
.16.17.25.35.36.37.38.39...16.17.18.26.20.37.38.39...16.17.25.26.27.21.29.30
.24.32.33.34.28.29.30.31...24.32.33.27.35.29.30.31...24.32.33.34.28.36.37.38
CROSSREFS
Cf. A264534.
Sequence in context: A231936 A326210 A204841 * A253126 A014733 A053907
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 17 2015
STATUS
approved

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Last modified April 13 04:33 EDT 2024. Contains 371639 sequences. (Running on oeis4.)