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 A178298 #18 Aug 06 2023 21:59:42 %S A178298 0,10,152,1858,21680,253690,3023432,36785458,455700320,5725140970 %N A178298 Number of collinear point triples in a 5 X 5 X 5 X... n-dimensional cubic grid. %F A178298 From _R. J. Mathar_ May 24 2010: (Start) %F A178298 Conjecture: a(n) = 7^n - 5^(n+1)/2 + 13^n/2 + 9^n. %F A178298 Conjecture: a(n) = 34*a(n-1) - 416*a(n-2) + 2174*a(n-3) - 4095*a(n-4). %F A178298 Conjectured g.f.: 2*x*(5-94*x+425*x^2)/((9*x-1)*(13*x-1)*(7*x-1)*(5*x-1)). %F A178298 (End) %K A178298 nonn %O A178298 0,2 %A A178298 _R. H. Hardin_, suggested by _R. J. Mathar_ in the Sequence Fans Mailing List, May 24 2010