



1, 0, 1, 1, 0, 1, 2, 0, 0, 1, 3, 1, 0, 0, 1, 5, 1, 0, 0, 0, 1, 7, 2, 1, 0, 0, 0, 1, 10, 3, 1, 0, 0, 0, 0, 1, 16, 3, 1, 1, 0, 0, 0, 0, 1, 21, 5, 2, 1, 0, 0, 0, 0, 0, 1, 29, 7, 3, 1, 1, 0, 0, 0, 0, 0, 1, 40, 10, 3, 1, 1, 0, 0, 0, 0, 0, 0, 1, 57, 11, 4, 2, 1, 1, 0, 0, 0, 0, 0, 0, 1
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OFFSET

1,7


COMMENTS

Row sums = the partition numbers, A000041: (1, 1, 2, 3, 5, 7, 11, 15,...) A137585 = A054525 * A026794.


LINKS

Table of n, a(n) for n=1..91.


FORMULA

A026794 * A054525, as infinite lower triangular matrices. A026794 = the partition triangle, A054525 = the Mobius transform.


EXAMPLE

First few rows of the triangle are:
1;
0, 1;
1, 0, 1;
2, 0, 0, 1;
3, 1, 0, 0, 1;
5, 1, 0, 0, 0, 1;
7, 2, 1, 0, 0, 0, 1;
10, 3, 1, 0, 0, 0, 0, 1;
16, 3, 1, 1, 0, 0, 0, 0, 1;
...


CROSSREFS

Cf. A000041, A137585, A026794, A054525.
Sequence in context: A290430 A290429 A045847 * A291170 A275001 A290975
Adjacent sequences: A137583 A137584 A137585 * A137587 A137588 A137589


KEYWORD

nonn,tabl


AUTHOR

Gary W. Adamson, Jan 27 2008


STATUS

approved



