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 A327616 #48 Jul 09 2020 02:59:15 %S A327616 1,1,1,2,1,2,3,1,1,2,3,1,4,2,1,5,1,2,3,1,4,2,1,5,6,3,2,7,1,4,8,1,1,2, %T A327616 3,1,4,2,1,5,6,3,2,7,1,4,8,1,9,5,3,10,2,6,11,2,1,4,7,1,12,3,1,13,1,2, %U A327616 3,1,4,2,1,5,6,3,2,7,1,4,8,1,9,5,3,10,2 %N A327616 Irregular table read by rows; the first row contains a single 1; for any n > 1, row n+1 corresponds to the ordinal transform of the terms in rows 1..n. %C A327616 The ordinal transform of a sequence b(n) is the sequence t(n) = number of values in b(1), ..., b(n) which are equal to b(n). %H A327616 Rémy Sigrist, <a href="/A327616/b327616.txt">Table of n, a(n) for n = 1..8192</a> %F A327616 Apparently: %F A327616 - the greatest term in row n is A000045(n), %F A327616 - a(n) = 1 iff n = 1 or n belongs to A060138, %F A327616 - a(A048297(n+1)) = n (and this corresponds to the first occurrence of n), %F A327616 - a(4^k) = A000045(2*k+1) for any k >= 0, %F A327616 - a(2*4^k-1) = A000045(2*k+2) for any k >= 0. %e A327616 Triangle begins: %e A327616 1: [1] %e A327616 2: [1] %e A327616 3: [1, 2] %e A327616 4: [1, 2, 3, 1] %e A327616 5: [1, 2, 3, 1, 4, 2, 1, 5] %e A327616 6: [1, 2, 3, 1, 4, 2, 1, 5, 6, 3, 2, 7, 1, 4, 8, 1] %o A327616 (PARI) { for (n=1, #a=vector(85), print1 (a[n]=if (n==1, a[n]=1, a[n]=o[a[k++]]++)", "); if (hammingweight(n)==1, k=0; o=vector(vecmax(a[1..n])))) } %Y A327616 Cf. A000045, A011782 (row lengths), A048297, A060138, A107946. %K A327616 nonn,look,tabf %O A327616 1,4 %A A327616 _Rémy Sigrist_, Jul 06 2020