A144332 Triangle read by rows, A144328 * A007318

1, 2, 1, 4, 5, 2, 7, 14, 11, 3, 11, 30, 35, 19, 4, 16, 55, 85, 69, 29, 5, 22, 91, 175, 189, 119, 41, 6, 29, 140, 322, 434, 364, 188, 55, 7, 37, 204, 546, 882, 924, 636, 279, 71, 8, 46, 285, 870, 1638, 2058, 1770, 1035, 395, 89, 9

Offset

1,2

Comments

Row sums = A088578: (1, 3, 11, 35, 99, 259, 643,...).

Left border = A000124: (1, 2, 4, 7, 11, 16,...).

Links

Table of n, a(n) for n=1..55.

Formula

Triangle read by rows, A144328 * A007318 (Pascal's triangle).

Example

First few rows of the triangle =
1;
2, 1
4, 5, 2;
7, 14, 11, 3;
11, 30, 35, 19, 4;
16, 55, 85, 69, 29, 5;
22, 91, 175, 189, 119, 41, 6;
29, 140, 322, 434, 364, 188, 55, 7;
...

Crossrefs

A144328, Cf. A088578

Sequence in context: A209166 A209146 A209154 * A209153 A209141 A038719

Adjacent sequences: A144329 A144330 A144331 * A144333 A144334 A144335

Keyword

nonn,tabl

Author

Gary W. Adamson, Sep 18 2008

Status

approved