



1, 2, 1, 5, 2, 1, 13, 4, 3, 1, 34, 9, 6, 4, 1, 88, 22, 11, 10, 5, 1, 225, 55, 22, 20, 15, 6, 1, 569, 137, 50, 36, 35, 21, 7, 1, 1425, 338, 122, 65, 70, 56, 28, 8, 1, 3538, 826, 302, 130, 127, 126, 84, 36, 9, 1, 8717, 2002, 740, 296, 221, 252, 210, 120, 45, 10, 1
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OFFSET

1,2


COMMENTS

Row sums = A103446: (1, 3, 8, 21, 54, 137, 344,...)


LINKS

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


FORMULA

Binomial transform of the partition triangle, A026794


EXAMPLE

First few rows of the triangle are:
1;
2, 1;
5, 2, 1;
13, 4, 3, 1;
34, 9, 6, 4, 1;
88, 22, 11, 10, 5, 1;
225, 55, 22, 20, 15, 6, 1;
569, 137, 50, 36, 35, 21, 7, 1;
...


CROSSREFS

Cf. A026794, A103446.
Sequence in context: A128514 A126075 A134032 * A048494 A047848 A275431
Adjacent sequences: A137148 A137149 A137150 * A137152 A137153 A137154


KEYWORD

nonn,tabl


AUTHOR

Gary W. Adamson, Jan 23 2008


STATUS

approved



