A264479 Number of (5+1)X(n+1) arrays of permutations of 0..n*6+5 with each element having directed index change 0,1 1,0 2,1 or -1,-1.

1, 16, 49, 456, 3540, 28489, 215607, 1711113, 13390929, 103239049, 808268548, 6305839174, 49028148726, 382311026201, 2980060222502, 23211745902165, 180884486207033, 1409598089228359, 10983040186007341, 85581889782163761

Offset: 1

Author

R. H. Hardin, Nov 14 2015

Keywords

• nonn

Comments

Row 5 of A264476.

Examples

			Some solutions for n=4
..6..0..1..9..3....6..7..1..9..3....6..7..1..9..3....6..7..1..2..3
.11..5..2.14..4....0.12..2.14..4....0.12..2.14..4...11.12.13.14..4
.16.10..7..8.13....5.17.18.19.13....5.17.11.19.13....5..0.18.19..9
.21.22.12.24.18...21.15.16.24..8...21.15.16.24..8...10.15.16.24..8
.15.27.17.29.19...26.10.11.29.23...26.10.28.29.23...26.27.21.29.23
.20.25.26.23.28...20.25.22.27.28...20.25.22.27.18...20.25.22.17.28
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 84

Crossrefs

Cf. A264476.

Formula

Empirical recurrence of order 84 (see link above)