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 A216442 #44 Oct 28 2022 07:16:13
%S A216442 3,4,5,6,7,8,9,10,11,12,14,15,16,18,20,22,24,26,27,28,29,30,32,33,34,
%T A216442 35,36,38,40,42,44,46,48,50,53,54,56,58,60,64,66,68,70,72,74,78,83,84,
%U A216442 86,87,88,90,92,94,96,98,102,107,108,110,114,116,118,122,127
%N A216442 Numbers of the form 2^i + 3^j + 5^k, where i, j, k >= 0.
%C A216442 Conjecture: Unlike A004050, which has a limited set of integers expressible in more than one way, this set has no such limit.
%C A216442 Number of terms less than or equal to 10^k, k > 0: 8, 56, 238, 615, 1304, 2169, 3606, 5280, 7196, 10414, ....
%H A216442 T. D. Noe, <a href="/A216442/b216442.txt">Table of n, a(n) for n = 1..10000</a>
%H A216442 Diego Marques and Alain Togbé, <a href="https://doi.org/10.3792/pjaa.89.47">Fibonacci and Lucas numbers of the form 2^a + 3^b + 5^c</a>, Proc. Japan Acad. Ser. A Math. Sci. 89(3): 47-50 (March 2013).
%F A216442 There are O(log^3 x) terms of the sequence up to x. - _Charles R Greathouse IV_, Oct 28 2022
%t A216442 mx = 140; Union@ Flatten@ Table[2^i + 3^j + 5^k, {i, 0, Log[2, mx]}, {j, 0, Log[3, mx - 2^i]}, {k, 0, Log[5, mx - 2^i - 3^j]}]
%Y A216442 Cf. A004050.
%K A216442 nonn
%O A216442 1,1
%A A216442 _Robert G. Wilson v_, Sep 20 2012