%I #10 Mar 11 2018 21:44:36
%S 0,4,12,36,56,120,135,250,297,684,520,910,945,1616,1428,2826,2489,
%T 3500,3654,5346,4899,9000,7175,10010,9909,14028,13050,21960,17577,
%U 23552,21582,28798,28385,38952,36778,47044,43992,57680,51455,77238,66865,81576
%N Number of 5-cycles in the n-polygon diagonal intersection graph.
%H Andrew Howroyd, <a href="/A300553/b300553.txt">Table of n, a(n) for n = 3..100</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/GraphCycle.html">Graph Cycle</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PolygonDiagonalIntersectionGraph.html">Polygon Diagonal Intersection Graph</a>
%Y A062361 (3-cycles), A300552 (4-cycles), A300554 (6-cycles).
%K nonn
%O 3,2
%A _Eric W. Weisstein_, Mar 08 2018
%E Terms a(21) and beyond from _Andrew Howroyd_, Mar 11 2018