|
| |
| |
|
|
|
1, 8, 4, 15, 8, 7, 22, 12, 11, 10, 29, 16, 15, 14, 13, 36, 20, 19, 18, 17, 16, 43, 24, 23, 22, 21, 20, 19, 50, 28, 27, 26, 25, 24, 23, 22, 57, 32, 31, 30, 29, 28, 27, 26, 25, 64, 36, 35, 34, 33, 32, 31, 30, 29, 28
(list; table; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,2
|
|
|
COMMENTS
| Left column = A016993, 7n + 1: (1, 8, 15, 22, 29,...). Right border = 3n + 1: (1, 4, 7, 10, 13,...). Row sums = A131874: (1, 12, 30, 55,...).
|
|
|
FORMULA
| A131844 * A000012 as infinite lower triangular matrices.
|
|
|
EXAMPLE
| First few rows of the triangle are:
1;
8, 4;
15, 8, 7;
22, 12, 11, 10;
29, 16, 15, 14, 13;
36, 20, 19, 18, 17, 16;
43, 24, 23, 22, 21, 20, 19;
...
|
|
|
CROSSREFS
| Cf. A131844, A131874, A016993, A131875.
Sequence in context: A082073 A156279 A203072 * A040059 A178603 A018810
Adjacent sequences: A131870 A131871 A131872 * A131874 A131875 A131876
|
|
|
KEYWORD
| nonn,tabl
|
|
|
AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Jul 22 2007
|
| |
|
|
