A145972 Triangle read by rows, A000012 * A053121

1, 1, 1, 2, 1, 1, 2, 3, 1, 1, 4, 3, 4, 1, 1, 4, 8, 4, 5, 1, 1, 9, 8, 13, 5, 6, 1, 1, 9, 22, 13, 19, 6, 7, 1, 1, 23, 22, 41, 19, 26, 7, 8, 1, 1, 23, 64, 41, 67, 26, 34, 8, 9, 1, 1, 65, 64, 131, 67, 101, 34, 43, 9, 10, 1, 1

Offset

0,4

Comments

Row sums = A036256: (1, 2, 4, 7, 13, 23, 43,...).

Links

Table of n, a(n) for n=0..65.

Formula

Triangle read by rows, A000012 * A053121, = partial sums of column terms of triangle A053121.

Example

A053121 starts:
1;
0, 1;
1, 0, 1;
0, 2, 0, 1;
...
Taking partial sums from the top, we get A145972:
1;
1, 1;
2, 1, 1;
2, 3, 1, 1;
4, 3, 4, 1, 1;
4, 8, 4, 5, 1, 1;
9, 8, 13, 5, 6, 1, 1;
9, 22, 13, 19, 6, 7, 1, 1;
23, 22, 41, 19, 26, 7, 8, 1, 1;
23, 64, 41, 67, 26, 34, 8, 9, 1, 1;
...

Crossrefs

Cf. A036256, A053121

Sequence in context: A133255 A354273 A282748 * A215204 A260876 A152650

Adjacent sequences: A145969 A145970 A145971 * A145973 A145974 A145975

Keyword

nonn,tabl

Author

Gary W. Adamson & Roger L. Bagula, Oct 25 2008

Status

approved