This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A183727 #7 Oct 06 2015 22:05:29 %S A183727 16731,388998,8439116,200260149,4858574535,134020420595,5585215240568, %T A183727 460509744129719,54842127230404464,7095042727449540024, %U A183727 920742012786042810982,118354309394343482912431 %N A183727 1/12 the number of (n+1) X 8 0..5 arrays with every 2 X 2 subblock strictly increasing clockwise or counterclockwise with one decrease, and at least two adjacent blocks having the same increasing direction. %C A183727 Column 7 of A183729. %H A183727 R. H. Hardin, <a href="/A183727/b183727.txt">Table of n, a(n) for n = 1..18</a> %e A183727 Some solutions with the first block increasing clockwise for 3 X 8: %e A183727 ..1..2..1..3..2..1..3..2....1..2..1..0..2..1..2..1....1..2..1..2..1..2..1..0 %e A183727 ..0..5..0..4..5..0..4..0....0..3..4..5..4..5..4..0....0..4..5..4..5..3..4..5 %e A183727 ..1..3..2..3..2..1..3..1....1..2..1..0..3..2..3..2....2..3..1..3..1..2..1..0 %e A183727 ... %e A183727 ...R..L..R..L..L..R..L.......R..L..L..R..L..R..L.......R..L..R..L..R..L..L... %e A183727 ...L..R..L..R..R..L..R.......L..R..R..L..R..L..R.......L..R..L..R..L..R..R... %K A183727 nonn %O A183727 1,1 %A A183727 _R. H. Hardin_, Jan 06 2011