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 A178367 #5 Aug 21 2019 17:22:31 %S A178367 7,49,58,59,67,68,76,77,85,86,94,95,199,289,298,299,379,388,389,397, %T A178367 398,399,469,478,479,487,488,489,496,497,498,559,568,569,577,578,579, %U A178367 586,587,588,595,596,597,649,658,659,667,668,669,676,677,678,685,686,687 %N A178367 Numbers with rounded up arithmetic mean of digits = 7. %C A178367 A004427(a(n)) = 7; %C A178367 A000027 = union of A178361, A178362, A178363, A178364, A178365, A178366, A178368, A178369, and this sequence. %H A178367 R. Zumkeller, <a href="/A178367/b178367.txt">Table of n, a(n) for n = 1..1000</a> %t A178367 Select[Range[700],Ceiling[Mean[IntegerDigits[#]]]==7&] (* _Harvey P. Dale_, Aug 21 2019 *) %K A178367 base,nonn %O A178367 1,1 %A A178367 _Reinhard Zumkeller_, May 27 2010