|
| |
|
|
A209156
|
|
Triangle read by rows: denominators of Stirling-like triangle of rational numbers.
|
|
1
|
|
|
|
1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 3, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3, 4, 2, 2, 1, 1, 1, 3, 3, 1, 3, 1, 1
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,5
|
|
|
LINKS
|
Table of n, a(n) for n=1..36.
Joseph M. Santmyer, A Stirling like sequence of rational numbers, Discrete Math. 171 (1997), no. 1-3, 229-235. MR1454453.
|
|
|
EXAMPLE
|
Triangle begins:
-1,
-1,1,
-1,3/2,-1,
-1,1,-2,1,
-1,5,-5/3,5/2,-1,
-1,1,-5,5/2,-3,1,
-1,7,-7/3,35/4,-7/2,7/2,-1,
-1,4,-28/3,7/3,-14,14/3,-4,1,...
|
|
|
CROSSREFS
|
Cf. A209155.
Sequence in context: A186027 A322482 A231071 * A329325 A191004 A191358
Adjacent sequences: A209153 A209154 A209155 * A209157 A209158 A209159
|
|
|
KEYWORD
|
nonn,frac,tabl,more
|
|
|
AUTHOR
|
N. J. A. Sloane, Mar 05 2012
|
|
|
STATUS
|
approved
|
| |
|
|
