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A137585 Triangle read by rows: A054525 * A026794. 2
1, 0, 1, 1, 0, 1, 2, 0, 0, 1, 4, 1, 0, 0, 1, 5, 1, 0, 0, 0, 1, 10, 2, 1, 0, 0, 0, 1, 12, 3, 1, 0, 0, 0, 0, 1, 20, 4, 1, 1, 0, 0, 0, 0, 1, 25, 5, 2, 1, 0, 0, 0, 0, 0, 1, 41, 8, 3, 1, 1, 0, 0, 0, 0, 0, 1, 47, 10, 3, 1, 1, 0, 0, 0, 0, 0, 0, 1, 76, 14, 5, 2, 1, 1, 0, 0, 0, 0, 0, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,7

COMMENTS

Row sums = A000837 starting (1, 1, 2, 3, 6, 7, 14, 17,...).

LINKS

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

FORMULA

Mobius transform of A026794, the partition triangle.

EXAMPLE

First few rows of the triangle are:

1;

0, 1;

1, 0, 1;

2, 0, 0, 1;

4, 1, 0, 0, 1;

5, 1, 0, 0, 0, 1;

10, 2, 1, 0, 0, 0, 1;

12, 3, 1, 0, 0, 0, 0, 1;

...

CROSSREFS

Cf. A054525, A026794, A000837.

Sequence in context: A111146 A109077 A309023 * A301344 A301579 A072458

Adjacent sequences:  A137582 A137583 A137584 * A137586 A137587 A137588

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jan 27 2008

STATUS

approved

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Last modified October 21 16:14 EDT 2019. Contains 328302 sequences. (Running on oeis4.)