|
| |
|
|
A168256
|
|
Triangle read by rows: Catalan number C(n) repeated n+1 times.
|
|
0
|
|
|
|
1, 1, 1, 2, 2, 2, 5, 5, 5, 5, 14, 14, 14, 14, 14, 42, 42, 42, 42, 42, 42, 132, 132, 132, 132, 132, 132, 132, 429, 429, 429, 429, 429, 429, 429, 429, 1430, 1430, 1430, 1430, 1430, 1430, 1430, 1430, 1430, 4862, 4862, 4862, 4862, 4862, 4862, 4862, 4862
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
0,4
|
|
|
COMMENTS
|
Rows sums are A000984
|
|
|
LINKS
|
Table of n, a(n) for n=0..52.
|
|
|
EXAMPLE
|
Triangle begins:
1;
1, 1;
2, 2, 2;
5, 5, 5, 5 ;
14, 14, 14, 14, 14;
42, 42, 42, 42, 42, 42;
|
|
|
CROSSREFS
|
Cf. A000108, A000984.
Sequence in context: A098101 A105960 A081290 * A123081 A020917 A035643
Adjacent sequences: A168253 A168254 A168255 * A168257 A168258 A168259
|
|
|
KEYWORD
|
nonn,tabl
|
|
|
AUTHOR
|
Mark Dols (Markdols99(AT)yahoo.com), Nov 21 2009
|
|
|
STATUS
|
approved
|
| |
|
|
