|
| |
| |
|
|
|
1, 3, 2, 13, 9, 3, 51, 52, 18, 4, 205, 255, 130, 30, 5, 819, 1230, 765, 260, 45, 6, 3277, 5733, 4305, 1785, 455, 63, 7, 13107, 26216, 22932, 11480, 3570, 728, 84, 8
(list; table; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
COMMENTS
| Row sums = powers of 5: (1, 5, 25, 125,...). Left border = A015521: (1, 3, 13, 51, 205, 819,...).
|
|
|
FORMULA
| Let P = Pascal's triangle, A007318. Then A131050 = (1/5) * (P^4 - 1/P); deleting the right border of zeros.
|
|
|
EXAMPLE
| First few rows of the triangle are:
1;
3, 2;
13, 9, 3;
51, 52, 18, 4;
205, 255, 130, 30, 5;
...
|
|
|
CROSSREFS
| Cf. A015521, A131047, A131048, A131049, A131051.
Sequence in context: A075556 A087357 A191705 * A084416 A005352 A095131
Adjacent sequences: A131047 A131048 A131049 * A131051 A131052 A131053
|
|
|
KEYWORD
| nonn,tabl
|
|
|
AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Jun 12 2007
|
| |
|
|
