A264169 Number of (n+1)X(4+1) arrays of permutations of 0..n*5+4 with each element having directed index change 0,0 0,1 1,0 -2,-1 or -1,-2.

16, 418, 6017, 96296, 1531900, 23916656, 375202191, 5888212022, 92168640612, 1442827111989, 22591182170328, 353674847153160, 5536572579026045, 86672265314527134, 1356811283581926803, 21240085911830680491

Offset: 1

Author

R. H. Hardin, Nov 06 2015

Keywords

• nonn

Comments

Column 4 of A264172.

Examples

			Some solutions for n=4
..0..8..2.14..4....0.12..2..3..4...11.12..1.14..4....7..1..9..2..3
..5..1.18..3..9....5..1..6.19..8....0..6..2..3..8....0..6.18..8..4
.10..6..7.12.13...17.10..7.24..9....5.22..7.13..9....5.10.19.24.13
.15.11.24.17.19...15.11.16.13.14...10.15.16.18.19...15.11.12.17.14
.20.16.21.22.23...20.21.22.18.23...20.21.17.23.24...20.16.21.22.23
		

Links

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

Crossrefs

Cf. A264172.