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 A292962 #4 Oct 05 2017 21:29:24 %S A292962 1,3,2,5,7,4,9,14,13,6,11,21,24,19,8,16,29,36,35,26,10,18,38,50,53,46, %T A292962 32,12,23,45,63,72,68,59,41,15,27,56,77,90,94,87,73,47,17,30,65,92, %U A292962 110,119,117,106,84,54,20,34,74,107,132,146,150,142,125,98 %N A292962 Rectangular array by antidiagonals: T(n,m) = rank of n*(r-1+m) when all the numbers k*(r+h), where r = log(2), k>=1, h>=0, are jointly ranked. %C A292962 Every positive integer occurs exactly once, so that as a sequence, this is a permutation of the positive integers. %H A292962 Clark Kimberling, <a href="/A292962/b292962.txt">Antidiagonals n=1..60, flattened</a> %F A292962 T(n,m) = Sum_{k=1...[n + m*n/r]} [1 - r + n*(r + m)/k], where r=log(2) and [ ]=floor. %e A292962 Northwest corner: %e A292962 1 3 5 9 11 16 18 %e A292962 2 7 14 21 29 38 45 %e A292962 4 13 24 36 50 63 77 %e A292962 6 19 35 53 72 90 110 %e A292962 8 26 46 68 94 119 146 %e A292962 10 32 59 87 117 150 181 %e A292962 12 41 73 106 142 180 219 %e A292962 The numbers k*(r+h), approximately: %e A292962 (for k=1): 0.693 1.693 2.693 ... %e A292962 (for k=2): 1.386 3.386 5.386 ... %e A292962 (for k=3): 2.079 5.079 8.079 ... %e A292962 Replacing each by its rank gives %e A292962 1 3 5 %e A292962 2 7 14 %e A292962 4 13 24 %t A292962 r = Log[2]; z = 12; %t A292962 t[n_, m_] := Sum[Floor[1 - r + n*(r + m)/k], {k, 1, Floor[n + m*n/r]}]; %t A292962 u = Table[t[n, m], {n, 1, z}, {m, 0, z}]; TableForm[u] (* A292962 array *) %t A292962 Table[t[n - k + 1, k - 1], {n, 1, z}, {k, n, 1, -1}] // Flatten (* A292962 sequence *) %Y A292962 Cf. A182801. %K A292962 nonn,easy,tabl %O A292962 1,2 %A A292962 _Clark Kimberling_, Oct 05 2017