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 A050945 #14 Aug 03 2023 09:03:40 %S A050945 20021154,28503474,53728674,224539314,242917674,304178874,341295954, %T A050945 370845474,377692314,443998554,533007474,610484874,709445274, %U A050945 855529674,964885074,978052074,1069943874,1114988874,1167961794 %N A050945 Numbers k such that sigma(k) > sigma(k+1) > sigma(k+2) > sigma(k+3) > sigma(k+4) > sigma(k+5). %C A050945 There are many examples of 4 consecutive numbers having decreasing values of sigma (see cross references) and there are 83 cases of 6 consecutive numbers with decreasing values of sigma < 4,293,000,000. Interestingly (and for unknown reasons) there are no examples of exactly 5 such consecutive numbers in that range! All known members of the sequence are multiples of 6 and one less than a multiple of 35. %D A050945 David Wells, The Penguin Dictionary of Curious and Interesting Numbers, entry 44. %H A050945 Seiichi Manyama, <a href="/A050945/b050945.txt">Table of n, a(n) for n = 1..100</a> %e A050945 sigma(20021154)=40894848 > sigma(20021155)=35458560 > ... > sigma(20021159)=20021160. %Y A050945 Cf. A000203, A050944, A053226, A364657, A364680. %K A050945 nonn %O A050945 1,1 %A A050945 _Jud McCranie_, Jan 02 2000 %E A050945 Name simplified by _Seiichi Manyama_, Aug 03 2023