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A348579 Triangle T(n, k), n > 0, 0 < k <= n, read by rows; the n-th row contains, in ascending order, the numbers m such that A307730(m) = n.

%I A348579 #11 Oct 25 2021 11:06:12
%S A348579 1,2,3,4,5,6,8,9,10,11,47,48,49,50,51,7,12,13,14,15,16,52,53,54,55,56,
%T A348579 57,58,27,28,29,30,31,32,33,34,17,18,19,20,21,22,23,24,25,60,61,62,63,
%U A348579 64,65,66,67,68,69,1374,1375,1376,1377,1378,1379,1380,1381,1382,1383,1384
%N A348579 Triangle T(n, k), n > 0, 0 < k <= n, read by rows; the n-th row contains, in ascending order, the numbers m such that A307730(m) = n.
%H A348579 Rémy Sigrist, <a href="/A348579/b348579.txt">Table of n, a(n) for n = 1..10011</a> (rows for n = 1..141, flattened)
%H A348579 Rémy Sigrist, <a href="/A348579/a348579.gp.txt">PARI program for A348579</a>
%H A348579 <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%F A348579 T(n, 1) = A348246(n).
%F A348579 T(n, n) = A348409(n).
%e A348579 Triangle T(n, k) begins:
%e A348579   n\k|   1   2   3   4   5   6   7   8   9  10
%e A348579   ---+----------------------------------------
%e A348579     1|   1
%e A348579     2|   2   3
%e A348579     3|   4   5   6
%e A348579     4|   8   9  10  11
%e A348579     5|  47  48  49  50  51
%e A348579     6|   7  12  13  14  15  16
%e A348579     7|  52  53  54  55  56  57  58
%e A348579     8|  27  28  29  30  31  32  33  34
%e A348579     9|  17  18  19  20  21  22  23  24  25
%e A348579    10|  60  61  62  63  64  65  66  67  68  69
%o A348579 (PARI) See Links section.
%Y A348579 Cf. A307720, A307730, A348246, A348409.
%K A348579 nonn,tabl
%O A348579 1,2
%A A348579 _Rémy Sigrist_ and _N. J. A. Sloane_, Oct 24 2021