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A261712 Reversed rows of A261644, seen as table read by rows.

%I A261712 #4 Aug 31 2015 02:52:16
%S A261712 1,1,3,1,5,8,1,5,9,12,15,3,8,13,20,25,28,31,3,8,13,17,24,29,33,37,41,
%T A261712 44,47,52,57,60,63,2,6,10,15,24,29,33,40,47,52,57,62,66,70,77,81,85,
%U A261712 88,91,99,105,108,111,116,121,124,127,4,12,20,25,30,34,38
%N A261712 Reversed rows of A261644, seen as table read by rows.
%C A261712 T(n+1,k) = T(n,k) for k = 1 .. A261727(n).
%H A261712 Reinhard Zumkeller, <a href="/A261712/b261712.txt">Rows n = 1..20 of triangle, flattened</a>
%e A261712 .   n |    T(n,*)                                            | A261646(n)
%e A261712 . ----+------------------------------------------------------+-----------
%e A261712 .   1 | 1                                                    |         1
%e A261712 .   2 | 1                                                    |         1
%e A261712 .   3 | 3                                                    |         1
%e A261712 .   4 | 1,5,8                                                |         3
%e A261712 .   5 | 1,5,9,12,15                                          |         5
%e A261712 .   6 | 3,8,13,20,25,28,31                                   |         7
%e A261712 .   7 | 3,8,13,17,24,29,33,37,41,44,47,52,57,60,63           |        15
%e A261712 .   8 | 2,6,10,15,24,29,33,40,47,52,57,62,66,70,77,81,85,... |        27
%e A261712 .   9 | 4,12,20,25,30,34,38,47,52,57,62,66,70,77,84,91,...   |        49
%e A261712 .  10 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |        90
%e A261712 .  11 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |       171
%e A261712 .  12 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |       326
%e A261712 .  13 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |       613
%e A261712 .  14 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |      1174
%e A261712 .  15 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |      2255
%e A261712 .  16 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |      4333 .
%o A261712 (Haskell)
%o A261712 a261712 n k = a261712_tabf !! (n-1) !! (k-1)
%o A261712 a261712_row n = a261712_tabf !! (n-1)
%o A261712 a261712_tabf = map reverse a261644_tabf
%Y A261712 Cf. A261644, A261646 (row lengths), A261727.
%K A261712 nonn,tabf
%O A261712 1,3
%A A261712 _Reinhard Zumkeller_, Aug 31 2015