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 A337917 #13 Nov 09 2020 00:07:11 %S A337917 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,269,0,0,0,0,0,0,0,0,0, %T A337917 0,0,0,0,0,0,0,0,0,0,0,0,0,253,0,629,0,0,0,0,0,0,200,360,0,0,0,484,0, %U A337917 0,0,0,0,0,0,584,0,0,512,464,417,0,0,0,0,0,0,0,367,0,0,0,0,0,0,0,0,0,0,0,0,0,0,466,161,0,0,0,0,0,0,0,0,0,0,0,463,0,0 %N A337917 Values of the Ramanujan tau quadruples mod 691 such that four (or more) consecutive Ramanujan tau numbers are congruent mod 691. %C A337917 Corresponding indices of the Ramanujan tau quadruples mod 691 are listed in A337916. %C A337917 tau(n) mod 691 appears to be almost evenly distributed between 0 and 690 - 2 through 690 each occur approximately 1/691 of the time; 0 occurs slightly more than that and 1 occurs slightly less. However, consecutive values that are congruent mod 691 are predominately congruent to 0. %H A337917 Jud McCranie, <a href="/A337917/b337917.txt">Table of n, a(n) for n = 1..1419</a> %e A337917 Ramajuan tau A000594(1045217422) == A000594(1045217423) == A000594(1045217424) == A000594(1045217425) == 269 %e A337917 so 269 is in the sequence, corresponding to 1045217422 in A337916. %Y A337917 Cf. A337916, A121742, A121743, A000594, A046694, A121733, A121734, A121742. %K A337917 nonn %O A337917 1,24 %A A337917 _Jud McCranie_, Nov 02 2020