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 A192119 #6 Oct 21 2019 14:32:45
%S A192119 0,3,5,6,17,33,41,45,47,48,87,215,279,311,327,335,339,341,342,353,423,
%T A192119 1377,1889,2145,2273,2337,2369,2385,2393,2397,2399,2400,8615,12711,
%U A192119 14759,15783,16295,16551,16679,16743,16775,16791,16799,16803,16805,16806,52113
%N A192119 Monotonic ordering of nonnegative differences 7^i-2^j, for 40>=i>=0, j>=0.
%t A192119 c = 7; d = 2; t[i_, j_] := c^i - d^j;
%t A192119 u = Table[t[i, j], {i, 0, 40}, {j, 0, i*Log[d, c]}];
%t A192119 v = Union[Flatten[u ]]
%Y A192119 Cf. A192118.
%K A192119 nonn
%O A192119 1,2
%A A192119 _Clark Kimberling_, Jun 23 2011