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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.

A277819 Transpose of square array A277820.

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%I A277819 #9 Nov 05 2016 07:26:10
%S A277819 1,2,3,7,6,5,4,9,10,15,13,12,27,30,17,14,23,20,45,34,51,11,18,57,60,
%T A277819 119,102,85,8,29,54,75,68,153,170,255,25,24,39,90,221,204,427,510,257,
%U A277819 26,43,40,105,238,359,340,765,514,771,31,46,125,120,187,306,937,1020,1799,1542,1285,28,33,114,135,136,461,854,1275,1028,2313,2570,3855
%N A277819 Transpose of square array A277820.
%C A277819 See A277820.
%H A277819 Antti Karttunen, <a href="/A277819/b277819.txt">Table of n, a(n) for n = 1..3321; the first 81 antidiagonals of the array</a>
%H A277819 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a>
%H A277819 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%e A277819 The top left 10 x 10 corner of the array:
%e A277819     1,    2,    7,    4,   13,   14,   11,    8,    25,    26
%e A277819     3,    6,    9,   12,   23,   18,   29,   24,    43,    46
%e A277819     5,   10,   27,   20,   57,   54,   39,   40,   125,   114
%e A277819    15,   30,   45,   60,   75,   90,  105,  120,   135,   150
%e A277819    17,   34,  119,   68,  221,  238,  187,  136,   393,   442
%e A277819    51,  102,  153,  204,  359,  306,  461,  408,   667,   718
%e A277819    85,  170,  427,  340,  937,  854,  599,  680,  1965,  1874
%e A277819   255,  510,  765, 1020, 1275, 1530, 1785, 2040,  2295,  2550
%e A277819   257,  514, 1799, 1028, 3341, 3598, 2827, 2056,  6425,  6682
%e A277819   771, 1542, 2313, 3084, 5911, 4626, 7453, 6168, 11051, 11822
%o A277819 (Scheme) (define (A277819 n) (A277820bi (A004736 n) (A002260 n))) ;; Code for A277820bi given in A277820.
%Y A277819 Transpose: A277820.
%Y A277819 Row 1: A065621, row 2: A277823.
%Y A277819 Column 1: A001317.
%Y A277819 Cf. A048724, A099884.
%K A277819 nonn,base,tabl
%O A277819 1,2
%A A277819 _Antti Karttunen_, Nov 01 2016