%I #11 Oct 09 2021 06:30:27
%S 1,1,2,1,3,1,2,4,1,5,1,2,3,6,1,3,7,1,2,4,8,1,9,1,2,5,10,1,11,1,2,3,4,
%T 6,12,1,13,1,2,3,6,7,14,1,3,5,7,15,1,2,4,8,16,1,17,1,2,9,18,1,19,1,2,
%U 4,5,10,20,1,5,21,1,2,11,22,1,23,1,2,3,4,6,8,12,24
%N Irregular triangle T(n, k), n > 0, k = 1..A067399(n), read by rows; the n-th row gives, in ascending order, the distinct integers k such that A067138(k, m) = n for some m.
%C The n-th row corresponds to the divisors of n in OR-numbral arithmetic.
%H Rémy Sigrist, <a href="/A348135/b348135.txt">Table of n, a(n) for n = 1..7412</a> (first 1024 rows flattened)
%H Rémy Sigrist, <a href="/A348135/a348135.gp.txt">PARI program for A348135</a>
%H <a href="/index/Di#dismal">Index entries for sequences related to dismal (or lunar) arithmetic</a>
%F T(n, 1) = 1.
%F T(n, A067399(n)) = n.
%e The triangle starts:
%e 1: [1]
%e 2: [1, 2]
%e 3: [1, 3]
%e 4: [1, 2, 4]
%e 5: [1, 5]
%e 6: [1, 2, 3, 6]
%e 7: [1, 3, 7]
%e 8: [1, 2, 4, 8]
%e 9: [1, 9]
%e 10: [1, 2, 5, 10]
%e 11: [1, 11]
%e 12: [1, 2, 3, 4, 6, 12]
%e 13: [1, 13]
%e 14: [1, 2, 3, 6, 7, 14]
%e 15: [1, 3, 5, 7, 15]
%e 16: [1, 2, 4, 8, 16]
%o (PARI) See Links section.
%Y Cf. A067138, A067399, A346795.
%K nonn,tabf
%O 1,3
%A _Rémy Sigrist_, Oct 02 2021