|
Search: id:A134403
|
|
|
| A134403 |
|
Triangle read by rows: row n consists of (n, n, (n+1), (n+2), (n+3),...). |
|
+0
3
|
|
| 0, 1, 1, 2, 2, 3, 3, 3, 4, 5, 4, 4, 5, 6, 7, 5, 5, 6, 7, 8, 9, 6, 6, 7, 8, 9, 10, 11, 7, 7, 8, 9, 10, 11, 12, 13, 8, 8, 9, 9, 10, 11, 12, 13, 14, 15, 9, 9, 10, 11, 12, 13, 14, 15, 16, 17
(list; table; graph; listen)
|
|
|
OFFSET
|
0,4
|
|
|
COMMENT
|
Row sums = A005449: (0, 2, 7, 15, 26, 40, 57,...).
|
|
FORMULA
|
Equals (A000012 * A134402 + A134402 * A000012) - A000012.
|
|
EXAMPLE
|
First few rows of the triangle are:
0;
1, 1;
2, 2, 3;
3, 3, 4, 5;
4, 4, 5, 6, 7;
5, 5, 6, 7, 8, 9;
6, 6, 7, 8, 9, 10, 11;
7, 7, 8, 9, 10, 11, 12, 13;
...
|
|
CROSSREFS
|
Cf. A134402, A005449.
Sequence in context: A029123 A025777 A029095 this_sequence A124882 A085578 A101646
Adjacent sequences: A134400 A134401 A134402 this_sequence A134404 A134405 A134406
|
|
KEYWORD
|
nonn,tabl
|
|
AUTHOR
|
Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 23 2007
|
|
EXTENSIONS
|
Leading term changed from 1 to 0 by njas, Apr 06 2008
|
|
|
Search completed in 0.002 seconds
|
