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 A222976 #9 Apr 05 2024 08:17:28 %S A222976 4938136,209524210,4823923384,8653956136,21669628904,44379752648, %T A222976 3681459083984,4553100850815 %N A222976 Smallest member of sociable quadruples with signature: abundant, deficient, deficient, deficient. %C A222976 See comments in A222975. %H A222976 Jan Munch Pedersen, <a href="http://62.198.248.44/aliquot/knwnc4.htm">Known Sociable Numbers of order four</a>, Tables of Aliquot Cycles. %e A222976 The first quadruple of this type is: 4938136, 5753864, 5504056, 5423384, that are respectively abundant, deficient, deficient, deficient. %Y A222976 Cf. A090615, A222975, A222977, A222978. %K A222976 nonn,more %O A222976 1,1 %A A222976 _Michel Marcus_, Mar 11 2013 %E A222976 a(7)-a(8) from _Amiram Eldar_, Apr 05 2024