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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.

A265345 Square array A(row,col): For row=0, A(0,col) = A265341(col), for row > 0, A(row,col) = A265342(A(row-1,col)).

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%I A265345 #22 Sep 20 2016 13:26:19
%S A265345 1,3,2,7,6,4,5,10,12,8,9,22,20,24,16,21,18,28,40,48,64,13,30,36,56,80,
%T A265345 192,32,19,26,60,72,112,160,96,184,25,14,52,120,144,224,640,552,352,
%U A265345 11,46,76,208,240,576,448,320,1056,704,15,58,68,136,104,480,288,1720,1600,2112,1408
%N A265345 Square array A(row,col): For row=0, A(0,col) = A265341(col), for row > 0, A(row,col) = A265342(A(row-1,col)).
%C A265345 Square array A(row,col) is read by downwards antidiagonals as: A(0,0), A(0,1), A(1,0), A(0,2), A(1,1), A(2,0), A(0,3), A(1,2), A(2,1), A(3,0), ...
%C A265345 All the terms in the same column are either all divisible by 3, or none of them are.
%C A265345 Reducing A265342 to its constituent sequences gives A265342(n) = A263273(2*A263273(n)). Iterating this function k times starting from n reduces to (because A263273 is an involution, so pairs of them are canceled) to A263273((2^k)*A263273(n)).
%H A265345 Antti Karttunen, <a href="/A265345/b265345.txt">Table of n, a(n) for n = 1..7381; the antidiagonals 0 .. 120 of the array</a>
%H A265345 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%F A265345 For row=0, A(0,col) = A265341(col), for row>0, A(row,col) = A265342(A(row-1,col)).
%F A265345 A(row, col) = A263273((2^row) * A263273(A265341(col))). [The above reduces to this.]
%e A265345 The top left corner of the array:
%e A265345     1,    3,    7,    5,    9,   21,   13,   19,   25,   11,   15,    39, .
%e A265345     2,    6,   10,   22,   18,   30,   26,   14,   46,   58,   66,    78, .
%e A265345     4,   12,   20,   28,   36,   60,   52,   76,   68,   44,   84,   156, .
%e A265345     8,   24,   40,   56,   72,  120,  208,  136,   88,  232,  168,   624, .
%e A265345    16,   48,   80,  112,  144,  240,  104,  200,  496,  424,  336,   312, .
%e A265345    64,  192,  160,  224,  576,  480,  520,  256,  344,  608,  672,  1560, .
%e A265345    32,   96,  640,  448,  288, 1920, 1144,  512, 1984,  736, 1344,  3432, .
%e A265345   184,  552,  320, 1720, 1656,  960, 2072, 1024, 1376, 4384, 5160,  6216, .
%e A265345   352, 1056, 1600,  824, 3168, 4800, 3712, 6040, 5344, 2936, 2472, 11136, .
%e A265345   ...
%o A265345 (Scheme)
%o A265345 (define (A265345 n) (A265345bi (A002262 (+ -1 n)) (A025581 (+ -1 n)))) ;; o=1.
%o A265345 (define (A265345bi row col) (A263273 (* (A000079 row) (A263273 (A265341 col))))) ;; Faster than below.
%o A265345 (define (A265345bi row col) (if (= 0 row) (A265341 col) (A265342 (A265345bi (- row 1) col)))) ;; row>=0, col>=0.
%Y A265345 Inverse: A265346.
%Y A265345 Transpose: A265347.
%Y A265345 Leftmost column: A264980.
%Y A265345 Topmost row: A265341.
%Y A265345 Row index: A265330 (zero-based), A265331 (one-based).
%Y A265345 Column index: A265910 (zero-based), A265911 (one-based).
%Y A265345 Cf. also A265342.
%Y A265345 Related permutations: A263273, A265895.
%K A265345 nonn,tabl,base
%O A265345 1,2
%A A265345 _Antti Karttunen_, Dec 18 2015