|
Search: id:A166548
|
|
| |
|
| 1, 2, 1, 2, 2, 1, 4, 6, 4, 1, 2, 4, 6, 4, 1, 4, 10, 16, 14, 6, 1, 4, 12, 22, 24, 16, 6, 1, 8, 28, 56, 70, 57, 28, 8, 1, 2, 8, 28, 56, 70, 56, 28, 8, 1, 4, 18, 64, 140, 196, 182, 112, 44, 10, 1, 4, 20, 74, 176, 280, 308, 238, 128, 46, 10, 1
(list; table; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
COMMENT
|
Row sums = A001317, (1, 3, 5, 15, 17, 51, 85, 255,...).
Left border = A001316: (1, 2, 2, 4, 2, 4, 4, 8, 2,...).
|
|
FORMULA
|
Triangle by rows, A007318 * A047999; as infinite lower triangular matrices.
|
|
EXAMPLE
|
First few rows of the triangle =
1;
2, 1;
2, 2, 1;
4, 6, 4, 1;
2, 4, 6, 4, 1;
4, 10, 16, 14, 6, 1;
4, 12, 22, 24, 16, 6, 1;
8, 28, 56, 70, 56, 28, 8, 1;
2, 8, 28, 56, 70, 26, 28, 8, 1;
4, 18, 64, 140, 196, 182, 112, 44, 10, 1;
4, 20, 74, 176, 280, 308, 238, 126, 46, 10, 1;
8, 44, 168, 426, 736, 996, 784, 494, 220, 66, 12, 1;
4, 24, 100, 280, 566, 848, 952, 800, 496, 220, 66, 12, 1;
...
|
|
CROSSREFS
|
Cf. A047999, A001316, A001317
Sequence in context: A129719 A062602 A123148 this_sequence A134997 A104605 A138516
Adjacent sequences: A166545 A166546 A166547 this_sequence A166549 A166550 A166551
|
|
KEYWORD
|
nonn,tabl
|
|
AUTHOR
|
Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 16 2009
|
|
|
Search completed in 0.002 seconds
|
