A177954 - OEIS

A177954

Triangle read by rows, A070909 * Pascal's triangle.

1, 2, 1, 2, 2, 1, 3, 5, 4, 1, 3, 6, 7, 4, 1, 4, 11, 17, 14, 6, 1, 4, 12, 22, 24, 16, 6, 1, 5, 19, 43, 59, 51, 27, 8, 1, 5, 20, 50, 80, 86, 62, 29, 8, 1, 6, 29, 86, 164, 212, 188, 113, 44, 10, 1

(list; table; graph; refs; listen; history; text; internal format)

OFFSET

0,2

COMMENTS

Row sums = A086893: (1, 3, 5, 13, 21, 53, 85,...).

LINKS

Table of n, a(n) for n=0..54.

FORMULA

Triangle read by rows, A070909 * A007318

EXAMPLE

First few rows of the triangle =

2, 1;

2, 2, 1;

3, 5, 4, 1;

3, 6, 7, 4, 1;

4, 11, 17, 14, 6, 1;

4, 12, 22, 24, 16, 6, 1;

5, 19, 43, 59, 51, 27, 8, 1;

5, 20, 50, 80, 86, 62, 29, 8, 1;

6, 29, 86, 164, 212, 188, 113, 44, 10, 1;

6, 30, 95, 200, 296, 314, 239, 128, 46, 10, 1;

7, 41, 150, 365, 626, 776, 701, 458, 211, 65, 12, 1;

...

CROSSREFS

Cf. A070909, A086893

Sequence in context: A035388 A255716 A351289 * A337312 A077053 A373127

Adjacent sequences: A177951 A177952 A177953 * A177955 A177956 A177957

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, May 15 2010

EXTENSIONS

a(46) corrected by Georg Fischer, May 20 2022

STATUS

approved