



1, 2, 1, 3, 2, 4, 4, 3, 8, 7, 5, 4, 12, 14, 10, 6, 5, 16, 21, 20, 13, 7, 6, 20, 28, 30, 26, 16, 8, 7, 24, 35, 40, 39, 32, 19, 9, 8, 28, 42, 50, 52, 48, 38, 22, 10, 9, 32, 49, 60, 65, 64, 57, 44, 25, 11, 10, 36, 56, 70, 78, 80, 76, 66, 50, 28
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OFFSET

1,2


COMMENTS

Row sums = A064808: (1, 3, 9, 22, 45, 81, 133,...).


LINKS

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


FORMULA

Triangle read by rows, A000012 * (3*A144328  2*A000012)


EXAMPLE

Partial sums by columns of the triangle (3*A144328  2*A000012):
1;
1, 1;
1, 1, 4;
1, 1, 4, 7;
1, 1, 4, 7, 10;
...
First few rows of the triangle =
1;
2, 1
3, 2, 4;
4, 3, 8, 7;
5, 4, 12, 14, 10;
6, 5, 16, 21, 20, 13;
7, 6, 20, 28, 30, 26, 16;
8, 7, 24, 35, 40, 39, 32, 19;
...


CROSSREFS

A144328, Cf. A064808
Sequence in context: A008584 A034390 A183912 * A029139 A100927 A001687
Adjacent sequences: A144690 A144691 A144692 * A144694 A144695 A144696


KEYWORD

nonn,tabl


AUTHOR

Gary W. Adamson, Sep 19 2008


STATUS

approved



