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 A363998 #7 Jul 31 2023 09:53:45
%S A363998 2,3,5,7,11,13,17,19,23,29,31,37,47,61,73,79,101,127,139,179,211,227,
%T A363998 229,239,241,269,431,503,509,601,727,997,1021,1163,1319,1931,2039,
%U A363998 2179,3299,3853,4093,4513,6529,6553,7949,8111,8191,11491,14197,16141,16381
%N A363998 Primes of the form |2^i - 3^j|, for i >= 0, j >= 0.
%e A363998 As in A014121, numbers of the form |2^i - 3^j|, for i >=0, j>=0 are 0,1,2,3,5,7,8,11,..., in which the primes are 2,3,5,7,11,... .
%t A363998 z = 500;
%t A363998 t = Table[Abs[2^i - 3^j], {i, 0, z}, {j, 0, z}];
%t A363998 v = Union[Sort[Flatten[t]]]; (* A014121*)
%t A363998 Intersection[v, Prime[Range[200000]]] (* A363998 *)
%Y A363998 Complement of A007643.
%Y A363998 Cf. A000040, A000079, A000244, A014121, A321671, A363999, A364000.
%K A363998 nonn
%O A363998 1,1
%A A363998 _Clark Kimberling_, Jul 30 2023