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 A362514 #10 Feb 16 2025 08:34:05 %S A362514 0,0,0,1,13,115,959,8876,101123,1519504,31138405,871560677, %T A362514 32897263307,1657411773700,111113100638331,9929019852558612, %U A362514 1185818207579540160,189496976724420953109,40497113442395855810240,11561238705271610991734848 %N A362514 Number of odd chordless cycles of length >4 in the n-triangular grid graph. %H A362514 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/OddChordlessCycle.html">Odd Chordless Cycle</a> %H A362514 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TriangularGridGraph.html">Triangular Grid Graph</a> %Y A362514 Cf. A297671. %K A362514 nonn %O A362514 1,5 %A A362514 _Eric W. Weisstein_, Apr 23 2023 %E A362514 a(11)-a(20) from _Andrew Howroyd_, Apr 23 2023