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A133737 A000012 * A130162. 1
1, 2, 1, 3, 1, 2, 4, 2, 2, 3, 5, 2, 2, 3, 6, 6, 3, 4, 3, 6, 7, 7, 3, 4, 3, 6, 7, 14, 8, 4, 4, 6, 6, 7, 14, 17, 9, 4, 6, 6, 6, 7, 14, 17, 27, 10, 5, 6, 6, 12, 7, 14, 17, 27, 34 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row sums = A026905, partial sums of A000041, the partition numbers with offset 1, = (1, 3, 6, 11, 18, 29, 44, 66,...).

LINKS

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

FORMULA

A000012 * A130162 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

2, 1;

3, 1, 2;

4, 2, 2, 3;

5, 2, 2, 3, 6;

6, 3, 4, 3, 6, 7;

7, 3, 4, 3, 6, 7, 14;

...

CROSSREFS

Cf. A130162, A026905, A000041.

Sequence in context: A130517 A316715 A130212 * A213361 A212121 A213371

Adjacent sequences:  A133734 A133735 A133736 * A133738 A133739 A133740

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Sep 22 2007

STATUS

approved

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Last modified August 4 16:34 EDT 2020. Contains 336202 sequences. (Running on oeis4.)