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A264382 Number of (4+1)X(n+1) arrays of permutations of 0..n*5+4 with each element having directed index change 2,-2 -1,0 -1,2 1,0 or 0,-1. 1
0, 25, 441, 3778, 60858, 711068, 9407584, 115929779, 1485398475, 18746069596, 237937556367, 3012183685044, 38165904080061, 483579364451792, 6125734123144467, 77617437527388938, 983250878745280550 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 4 of A264379.

LINKS

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

R. H. Hardin, Empirical recurrence of order 81

FORMULA

Empirical recurrence of order 81 (see link above)

EXAMPLE

Some solutions for n=4

..1..6..5..8..9....1..2..7..6..9....5..6..7..8..9....1..6..3..4..7

..0.11.12.13..4....0.11.10..3..4....0..1.10..3..4....0.11..2.13.14

..2..3..7.18.17....5.16.15..8.17....2.12.15.18.17....5.12.15.18..9

.10.21.20.23.22...20.21.18.13.14...16.11.20.13.14...10..8.20.23.22

.15.16.14.24.19...12.22.23.24.19...21.22.23.24.19...21.16.17.24.19

CROSSREFS

Cf. A264379.

Sequence in context: A021324 A092430 A018207 * A260854 A001714 A016633

Adjacent sequences:  A264379 A264380 A264381 * A264383 A264384 A264385

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 12 2015

STATUS

approved

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Last modified February 20 06:26 EST 2019. Contains 320332 sequences. (Running on oeis4.)