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 A372093 #17 Feb 16 2025 08:34:06 %S A372093 64,308,2116,16892,143224,1250228,11091536,99371772,895878604, %T A372093 8109607248,73605150496,669235388612,6091889767144,55495316073288, %U A372093 505799972171296,4611529143198652,42053844507644124,383555932615158068,3498586905231628036,31914171636394303392 %N A372093 Number of Eulerian orientations of the torus grid graph C_5 X C_n. %H A372093 Brendan McKay, <a href="/A372093/b372093.txt">Table of n, a(n) for n = 1..100</a> %H A372093 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TorusGridGraph.html">Torus Grid Graph</a> %H A372093 <a href="/index/Rec#order_09">Index entries for linear recurrences with constant coefficients</a>, signature (24,-219,988,-2407,3181,-2042,292,280,-96). %F A372093 a(n) = 24*a(n-1) - 219*a(n-2) + 988*a(n-3) - 2407*a(n-4) + 3181*a(n-5) - 2042*a(n-6) + 292*a(n-7) + 280*a(n-8) - 96*a(n-9). %F A372093 Asymptotically, a(n) ~ 2*(5+sqrt(17))^n. %Y A372093 Row 5 of A298119. %Y A372093 Cf. A298201. %K A372093 nonn,easy %O A372093 1,1 %A A372093 _Brendan McKay_, Apr 18 2024