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 A118815 #17 Jan 25 2021 04:26:13 %S A118815 -4656,1440,2912,2832,-10464,-768,-17376,20384,-72976,-18944,12672, %T A118815 41184,-199776,28944,-21104,3552,25488,338448,-60192,39952,-21792, %U A118815 -161904,499488,-83424,-7440,7440,-54288,-75456,1641792,42288 %N A118815 Determinants of 5 X 5 matrices consisting of 25 consecutive primes. %C A118815 5 X 5 analog of A117330. %e A118815 a(1) = -4656 = %e A118815 | 2 3 5 7 11| %e A118815 |13 17 19 23 29| %e A118815 |31 37 41 43 47| %e A118815 |53 59 61 67 71| %e A118815 |73 79 83 89 97|. %o A118815 (PARI) a(n) = matdet(matrix(5,5,i,j,prime((n+j-1)+5*(i-1)))); \\ _Michel Marcus_, Jan 25 2021 %Y A118815 Cf. A000040, A067276, A117301, A117330, A118713. %K A118815 easy,sign %O A118815 1,1 %A A118815 _Jonathan Vos Post_, May 23 2006