# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a264290 Showing 1-1 of 1 %I A264290 #4 Nov 10 2015 15:00:09 %S A264290 1,476,9724,197283,6080234,157344756,4076914388,108938582132, %T A264290 2873909666826,75778281689996,2000675174765756,52737323325950072, %U A264290 1389226958546893740,36583604627425625924,962973302936002433384 %N A264290 Number of (6+1)X(n+1) arrays of permutations of 0..n*7+6 with each element having directed index change 0,0 0,1 1,0 or -1,-2. %C A264290 Row 6 of A264285. %H A264290 R. H. Hardin, Table of n, a(n) for n = 1..209 %e A264290 Some solutions for n=4 %e A264290 ..7..0..2..3..4....7..1..2..3..4....0..1..9..2..3....0..1..9..2..3 %e A264290 .12..1..6..8..9....0..5..6..8..9...12..5..6..8..4...12..6.14..7..4 %e A264290 ..5.10.11.13.14...17.10.19.12.13...10.11..7.13.14....5.10.11..8.13 %e A264290 .15.16.24.18.19...15.11.16.18.14...22.15.16.17.19...15.16.24.18.19 %e A264290 .20.21.17.22.23...27.20.21.22.23...27.21.29.18.24...20.21.17.22.23 %e A264290 .32.26.27.28.29...32.26.34.28.24...20.25.26.23.28...25.26.34.28.29 %e A264290 .25.30.31.33.34...25.30.31.33.29...30.31.32.33.34...30.31.27.32.33 %Y A264290 Cf. A264285. %K A264290 nonn %O A264290 1,2 %A A264290 _R. H. Hardin_, Nov 10 2015 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE