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A264530 Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change -2,-2 -1,0 0,1 or 1,0. 1
1, 1, 29, 166, 1424, 8180, 59259, 373106, 2412437, 15444786, 98319654, 631317049, 4000509800, 25638291546, 162726625613, 1040425051956, 6615457333531, 42225119685838, 268805885562269, 1714155400353368, 10919104048916128 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
COMMENTS
Column 4 of A264534.
LINKS
EXAMPLE
Some solutions for n=4
..5..0.14..8..9....5..0..7..2..3....5..0..7..8..3...12..0.14..2..3
.17..1..2..3..4...17..1..6.13..4...17..1..2.13..4...10..1.19..7..4
.22..6..7.12.13...22.16.24..8..9...22..6.24.12..9....5..6.11..8..9
.10.11.16.23.24...10.11.12.23.14...10.11.16.23.14...20.21.22.13.24
.15.20.21.18.19...15.20.21.18.19...15.20.21.18.19...15.16.17.18.23
CROSSREFS
Cf. A264534.
Sequence in context: A142827 A142938 A264252 * A141910 A111032 A238599
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.)