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 A120401 #10 Oct 05 2024 16:29:32
%S A120401 0,1,2,3,4,5,6,7,8,9,10,11,12,13,15,16,17,18,19,20,22,23,24,26,27,28,
%T A120401 29,31,33,34,35,36,38,39,41,42,44,45,46,47,50,51,53,54,55,57,58,61,62,
%U A120401 63,64,66,68,70,71,73,74,76,78,80,81,83,85,86,89,90,91,93
%N A120401 Construct the sequence given by the floor of the imaginary part of zeros of the Riemann zeta function; take complement.
%C A120401 Complement to A013629. Similar to A002410 and A122526, which use "round" instead of "floor".
%e A120401 The first zero is 14.13472.. so 0,1,2,3,4,5,6,7,8,9,10,11,12,13 are part of the sequence.
%e A120401 The second zero is 21.02203.. so 15,16,17,18,19,20 are in the sequence too.
%e A120401 The third zero is 25.0108.. so we get 22,23,24, etc.
%t A120401 l=94;Complement[Range[0,l],Table[Floor[Im[ZetaZero[n]]],{n,l}]] (* _James C. McMahon_, Oct 05 2024 *)
%Y A120401 Cf. A002410, A122526.
%K A120401 fini,nonn
%O A120401 0,3
%A A120401 _Jorge Coveiro_, Jul 02 2006
%E A120401 a(54)-a(68) from _James C. McMahon_, Oct 05 2024