|
| |
| |
|
|
|
1, 3, 4, 6, 7, 9, 10, 11, 13, 16, 15, 16, 18, 21, 25, 21, 22, 24, 27, 31, 36, 28, 29, 31, 34, 38, 43, 49, 36, 37, 39, 42, 46, 51, 57, 64, 45, 46, 48, 51, 55, 60, 66, 73, 81, 55, 56, 58, 61, 65, 70, 76, 83, 91, 100
(list; table; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
COMMENTS
| Row sums = A002412: (1, 7, 22, 50, 95,...)
|
|
|
FORMULA
| A002260 * A051340 as infinite lower triangular matrices.
|
|
|
EXAMPLE
| First few rows of the triangle are:
1;
3, 4;
6, 7, 9;
10, 11, 13, 16;
15, 16, 18, 21, 25,
21, 22, 24, 27, 31, 36;
28, 29, 31, 34, 38, 43, 49;
...
|
|
|
CROSSREFS
| Cf. A002260, A051340, A002412.
Sequence in context: A061208 A183860 A184429 * A186495 A078607 A184746
Adjacent sequences: A130266 A130267 A130268 * A130270 A130271 A130272
|
|
|
KEYWORD
| nonn,tabl
|
|
|
AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), May 18 2007
|
| |
|
|
