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 A097902 #6 Apr 11 2021 03:11:36 %S A097902 9,3,3,12,1,12,3,4,4,3,15,1,16,1,15,27,5,4,4,5,27,6,9,20,1,20,9,6,18, %T A097902 2,36,5,5,36,2,18,15,6,8,9,25,9,8,6,15,9,5,24,2,45,45,2,24,5,9,15,3, %U A097902 20,6,10,81,10,6,20,3,15,24,5,12,5,30,18,18,30,5,12,5,24,27,8,20,3,25,54,4 %N A097902 Multiplication table of the digits of Pi read by antidiagonals. %e A097902 9; 3,3; 12,1,12; 3,4,4,3; ... %Y A097902 Cf. A003991, A098363, A098368, A098369. %K A097902 nonn,tabl,base %O A097902 0,1 %A A097902 Douglas Stones (dssto1(AT)student.monash.edu.au), Sep 04 2004