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 A183726 #7 Oct 06 2015 22:05:02 %S A183726 3070,41423,525895,7319684,112949014,2740758406,134020420595, %T A183726 9546147995730,729082624201394,55559473375122011,4177316401273489526, %U A183726 310180873007618124181,22791464284740341972598,1660173775969136404275224 %N A183726 1/12 the number of (n+1) X 7 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 A183726 Column 6 of A183729. %H A183726 R. H. Hardin, <a href="/A183726/b183726.txt">Table of n, a(n) for n = 1..59</a> %e A183726 Some solutions with the first block increasing clockwise for 3 X 7: %e A183726 ..1..2..0..1..2..0..1....1..2..3..1..2..1..2....2..5..4..3..4..1..2 %e A183726 ..4..3..5..4..3..5..4....0..5..4..0..4..0..4....1..0..1..2..5..0..5 %e A183726 ..0..1..0..1..2..0..2....1..2..3..1..3..1..3....3..5..4..3..4..2..3 %e A183726 ... %e A183726 ...R..L..R..R..L..R.......R..R..L..R..L..R.......R..L..L..R..L..R... %e A183726 ...L..R..L..L..R..L.......L..L..R..L..R..L.......L..R..R..L..R..L... %K A183726 nonn %O A183726 1,1 %A A183726 _R. H. Hardin_, Jan 06 2011