



1, 3, 1, 1, 4, 3, 3, 1, 7, 5, 1, 6, 2, 10, 7, 3, 3, 14, 4, 13, 9, 1, 8, 11, 26, 7, 16, 11, 3, 5, 25, 29, 43, 11, 19, 13, 1, 10, 24, 62, 62, 66, 16, 22, 15, 3, 7, 40, 78, 134, 116, 96, 22, 25, 17
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OFFSET

1,2


COMMENTS

Row sums = A003682: (1, 4, 8, 14, 22, 32, 44,...).


LINKS

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


FORMULA

Twice triangle A144328 minus the inverse of Pascal's triangle.


EXAMPLE

First few rows of the triangle =
1;
3, 1;
1, 4, 3
3, 1, 7, 5;
1, 6, 2, 10, 7;
3, 3, 14, 4, 13, 9;
1, 8, 11, 26, 7, 16, 11;
3, 5, 25, 29, 43, 11, 19, 13;
...


CROSSREFS

A144328, Cf. A003682
Sequence in context: A049999 A126015 A247169 * A036040 A080575 A205117
Adjacent sequences: A144333 A144334 A144335 * A144337 A144338 A144339


KEYWORD

tabl,sign


AUTHOR

Gary W. Adamson & Roger L. Bagula, Sep 18 2008


STATUS

approved



