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 A187295 #9 Jul 22 2025 10:41:22 %S A187295 0,0,0,789696,10664384,48391584,132995984,276318288,482853584, %T A187295 752575536,1083942480,1475455440,1926184124,2435663832,3003713808, %U A187295 3630272848,4315325376,5058867816,5860899668,6721420864,7640431404,8617931288 %N A187295 Number of 10-step one or two space at a time rook's tours on an n X n board summed over all starting positions. %C A187295 Row 10 of A187286 %H A187295 R. H. Hardin, <a href="/A187295/b187295.txt">Table of n, a(n) for n = 1..50</a> %F A187295 Empirical: a(n) = 29244672*n^2 - 280021012*n + 623972304 for n>17 %K A187295 nonn %O A187295 1,4 %A A187295 _R. H. Hardin_ Mar 08 2011