|
| |
|
|
A123880
|
|
Inverse of number triangle A123878.
|
|
1
| |
|
|
1, 0, 1, 1, 0, 1, 1, 3, 0, 1, 5, 3, 5, 0, 1, 11, 18, 5, 7, 0, 1, 41, 39, 35, 7, 9, 0, 1, 120, 157, 75, 56, 9, 11, 0, 1, 421, 459, 325, 119, 81, 11, 13, 0, 1, 1381, 1668, 950, 553, 171, 110, 13, 15, 0, 1, 4840
(list; table; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,8
|
|
|
COMMENTS
| First column is A055113. Row sums are A000108.
|
|
|
EXAMPLE
| Number triangle begins
1,
0, 1,
1, 0, 1,
1, 3, 0, 1,
5, 3, 5, 0, 1,
11, 18, 5, 7, 0, 1,
41, 39, 35, 7, 9, 0, 1,
120, 157, 75, 56, 9, 11, 0, 1
|
|
|
CROSSREFS
| Sequence in context: A115714 A020768 A104544 * A186363 A143626 A034261
Adjacent sequences: A123877 A123878 A123879 * A123881 A123882 A123883
|
|
|
KEYWORD
| nonn,tabl
|
|
|
AUTHOR
| Paul Barry (pbarry(AT)wit.ie), Oct 16 2006
|
| |
|
|
