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 A160914 #34 Jun 16 2022 03:21:17 %S A160914 1,2,3,4,11,12,19,20,37,38,55,56,87,88,119,120,169,170,219,220,291, %T A160914 292,363,364,461,462,559,560,687,688,815,816,977,978,1139,1140,1339, %U A160914 1340,1539,1540,1781,1782,2023,2024,2311,2312,2599,2600,2937,2938,3275,3276 %N A160914 Extended s-block elements for Janet table. %C A160914 See A168342. Must be included in A167268. From right to left, first vertical is A168380 from 1 to 8. Second vertical is A168380-1. In (1) page 12, introducing elements 93 to 120, Janet says that there is a probable 8th row. For row 8, he proposes, like for row 7, 32 elements (89 to 120). Page 16 he presents 4 blocks: first has 2*8 elements, second: 6*6, third: 10*4, fourth: 14*2. Today, blocks are s,p,d,f for Mendeleyev-Moseley-Seaborg 118 elements periodic table. See (2), (3), A173592 and A138509. In 1927, only 88 on the first 92 elements were known; 41 (1937 discovered), 61 (1947), 85 (1940) and 87 (1939) were missing. Since 2010 (117 discovered) the first 118 elements are known. Janet predicted only 120 elements. %D A160914 Charles JANET, La structure du Noyau de l'atome,considérée dans la Classification périodique, des éléments chimiques, 1927 (Novembre) N. 2 Beauvais, 67 pages, 3 leaflets. %e A160914 The following is an s-block, 2*8=16 elements, i.e., a(n) written vertically, after p-block, 6*6, (A138469). %e A160914 1 2 %e A160914 3 4 %e A160914 5 6 7 8 9 10 11 12 %e A160914 13 14 15 16 17 18 19 20 %e A160914 31 32 33 34 35 36 37 38 %e A160914 49 50 51 52 53 54 55 56 %e A160914 81 82 83 84 85 86 87 88 %e A160914 113 114 115 116 117 118 119 120 %Y A160914 Cf. A099955. %K A160914 nonn,tabf %O A160914 1,2 %A A160914 _Paul Curtz_, Oct 15 2011