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 A123505 #16 May 31 2025 10:27:44
%S A123505 1,2,1,2,2,2,3,3,5,6,7,8,11,14,17,21,26,34,41,51,65,80,101,125,157,
%T A123505 196,245,305,381,477,595,743,927,1159,1448,1807,2258,2819,3521,4397,
%U A123505 5492,6859,8565,10698,13361,16685,20839,26026,32503,40593,50697,63315,79074
%N A123505 Lengths of bit runs in A123504.
%C A123505 A123507 records the bit runs of A123506 and uses the second zero in an analogous operation.
%C A123505 Record the numbers of consecutive bit runs of A123504, see example.
%e A123505 A123504 = 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1...; therefore the numbers of bit runs are 1, 2, 1, 2, 2, 2, 3, ...
%t A123505 Length /@ Split[Table[Boole[Arg[1/n^ZetaZero[1]] > 0], {n, 2, 10^6}]] (* _Amiram Eldar_, May 31 2025 *)
%Y A123505 Cf. A100060, A102522, A102523, A123504, A123506, A123507.
%K A123505 nonn
%O A123505 2,2
%A A123505 _Gary W. Adamson_, Oct 01 2006
%E A123505 More terms from _Amiram Eldar_, May 31 2025