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A261712 Reversed rows of A261644, seen as table read by rows. 5
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, 44, 47, 52, 57, 60, 63, 2, 6, 10, 15, 24, 29, 33, 40, 47, 52, 57, 62, 66, 70, 77, 81, 85, 88, 91, 99, 105, 108, 111, 116, 121, 124, 127, 4, 12, 20, 25, 30, 34, 38 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

T(n+1,k) = T(n,k) for k = 1 .. A261727(n).

LINKS

Reinhard Zumkeller, Rows n = 1..20 of triangle, flattened

EXAMPLE

.   n |    T(n,*)                                            | A261646(n)

. ----+------------------------------------------------------+-----------

.   1 | 1                                                    |         1

.   2 | 1                                                    |         1

.   3 | 3                                                    |         1

.   4 | 1,5,8                                                |         3

.   5 | 1,5,9,12,15                                          |         5

.   6 | 3,8,13,20,25,28,31                                   |         7

.   7 | 3,8,13,17,24,29,33,37,41,44,47,52,57,60,63           |        15

.   8 | 2,6,10,15,24,29,33,40,47,52,57,62,66,70,77,81,85,... |        27

.   9 | 4,12,20,25,30,34,38,47,52,57,62,66,70,77,84,91,...   |        49

.  10 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |        90

.  11 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |       171

.  12 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |       326

.  13 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |       613

.  14 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |      1174

.  15 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |      2255

.  16 | 2,6,10,15,24,29,33,37,45,50,55,60,68,76,84,93,98,... |      4333 .

PROG

(Haskell)

a261712 n k = a261712_tabf !! (n-1) !! (k-1)

a261712_row n = a261712_tabf !! (n-1)

a261712_tabf = map reverse a261644_tabf

CROSSREFS

Cf. A261644, A261646 (row lengths), A261727.

Sequence in context: A137328 A140991 A302191 * A038738 A210741 A208760

Adjacent sequences:  A261709 A261710 A261711 * A261713 A261714 A261715

KEYWORD

nonn,tabf

AUTHOR

Reinhard Zumkeller, Aug 31 2015

STATUS

approved

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Last modified September 15 08:31 EDT 2019. Contains 327062 sequences. (Running on oeis4.)