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 A360195 #8 Feb 22 2023 22:21:48 %S A360195 8,836,85818,8790016,900013270,92146956300,9434262852690, %T A360195 965904015750408,98891686243392270,10124779093041746052, %U A360195 1036600283636692454794,106129737227642833341248,10865828704552798371380934,1112470797598979236296844092,113897550673086022197853291458 %N A360195 Number of acyclic spanning subgraphs in the 4 X n grid graph. %H A360195 Andrew Howroyd, <a href="/A360195/b360195.txt">Table of n, a(n) for n = 1..200</a> %H A360195 <a href="/index/Rec#order_10">Index entries for linear recurrences with constant coefficients</a>, signature (146,-5145,74504,-525120,1885344,-3430128,3147392,-1418496,278528,-16384). %F A360195 G.f.: x*(8 - 332*x + 4922*x^2 - 34224*x^3 + 120160*x^4 - 215504*x^5 + 196576*x^6 - 88512*x^7 + 17408*x^8 - 1024*x^9)/(1 - 146*x + 5145*x^2 - 74504*x^3 + 525120*x^4 - 1885344*x^5 + 3430128*x^6 - 3147392*x^7 + 1418496*x^8 - 278528*x^9 + 16384*x^10). %Y A360195 Row 4 of A360194. %Y A360195 Cf. A003696, A359991. %K A360195 nonn,easy %O A360195 1,1 %A A360195 _Andrew Howroyd_, Jan 29 2023