A144330 Triangle read by rows, A144328 * A000012

1, 2, 1, 4, 3, 2, 7, 6, 5, 3, 11, 10, 9, 7, 4, 16, 15, 14, 12, 9, 5, 22, 21, 20, 18, 15, 11, 6, 29, 28, 27, 25, 22, 18, 13, 7, 37, 36, 35, 33, 30, 26, 21, 15, 8, 46, 45, 44, 42, 39, 35, 30, 24, 17, 9, 56, 55, 54, 52, 49, 45, 40, 34, 27, 19, 10

Offset

1,2

Comments

Row sums = A064999: (1, 3, 9, 21, 41, 113,...).

Left border = A000124: (1, 2, 4, 7, 11, 16, 22, 29,...).

Links

Table of n, a(n) for n=1..66.

Formula

Triangle read by rows, partial sums of A144328 starting from the right.

Example

First few rows of the triangle =
1;
2, 1
4, 3, 2
7, 6, 5, 3;
11, 10, 9, 7, 4;
16, 15, 14, 12, 9, 5;
22, 21, 20, 18, 15, 11, 6;
29, 28, 27, 25, 22, 18, 13, 7;
...
Row 4 = (7, 6, 5, 3) = partial sums from the right of triangle A144328, row 4: (1, 1, 2, 3).

Crossrefs

A144328, Cf. A064999, A000124

Sequence in context: A377802 A064277 A287010 * A141155 A204922 A057669

Adjacent sequences: A144327 A144328 A144329 * A144331 A144332 A144333

Keyword

nonn,tabl

Author

Gary W. Adamson, Sep 18 2008

Status

approved