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A231330 Table of distinct terms in rows of triangle A230871, in natural order.

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%I A231330 #19 Jul 21 2025 02:41:04
%S A231330 0,1,1,3,2,4,8,3,5,7,9,11,21,5,7,11,13,17,19,23,25,29,55,8,10,12,16,
%T A231330 18,22,24,26,30,32,34,36,44,46,50,60,64,66,76,144,13,17,19,23,25,29,
%U A231330 31,35,37,41,43,47,49,53,55,61,65,67,71,73,77,79,83,89,95
%N A231330 Table of distinct terms in rows of triangle A230871, in natural order.
%C A231330 A230872 gives the union of all rows;
%C A231330 A231335(n) = number of Fibonacci numbers in row n.
%H A231330 Reinhard Zumkeller, <a href="/A231330/b231330.txt">Rows n = 0..14 of triangle, flattened</a>
%e A231330 Initial rows:
%e A231330 .  0:  0;
%e A231330 .  1:  1;
%e A231330 .  2:  1,3;
%e A231330 .  3:  2,4,8                     from A230871(3,*) = [2,2,4,8];
%e A231330 .  4:  3,5,7,9,11,21             from A230871(4,*) = [3,5,3,5,7,9,11,21];
%e A231330 .  5:  5,7,11,13,17,19,23,25,29,55;
%e A231330 .  6:  8,10,12,16,18,22,24,26,30,32,34,36,44,46,50,60,64,66,76,144.
%o A231330 (Haskell)
%o A231330 import Data.List (sort, nub)
%o A231330 a231330 n k = a231330_tabf !! n !! k
%o A231330 a231330_row n = a231330_tabf !! n
%o A231330 a231330_tabf = map (sort . nub) a230871_tabf
%Y A231330 Cf. A231331 (row lengths), A000045 (left edge), A001906 (right edge).
%K A231330 nonn,look,tabf
%O A231330 0,4
%A A231330 _Reinhard Zumkeller_, Nov 07 2013