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A140582 Triangle read by rows, A000012 * A140581. +0
2
1, 2, 1, 4, 1, 1, 4, 2, 1, 1, 8, 2, 1, 1, 1, 5, 4, 2, 1, 1, 1, 11, 4, 2, 1, 1, 1, 1, 11, 4, 2, 2, 1, 1, 1, 1, 11, 4, 4, 2, 1, 1, 1, 1, 1, 6, 8, 4, 2, 2, 1, 1, 1, 1, 1, 16, 8, 4, 2, 1, 1, 1, 1, 1, 1, 16, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 28, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1 (list; table; graph; listen)
OFFSET

0,2

COMMENT

Row sums = A072107: (1, 3, 6, 8, 13, 14,...).

FORMULA

Triangle read by rows, A000012 * A140581; where A000012 = the infinite lower triangular matrix with all 1's: [1; 1,1; 1,1,1;...].

EXAMPLE

First few rows of the triangle are:

1;

2, 1;

4, 1, 1;

4, 2, 1, 1;

8, 2, 1, 1, 1;

5, 4, 2, 1, 1, 1;

11, 4, 2, 1, 1, 1, 1;

11, 4, 2, 2, 1, 1, 1, 1;

11, 4, 4, 2, 1, 1, 1, 1, 1;

6, 8, 4, 2, 2, 1, 1, 1, 1, 1;

...

CROSSREFS

Cf. A140581, A072107.

Adjacent sequences: A140579 A140580 A140581 this_sequence A140583 A140584 A140585

Sequence in context: A072341 A011130 A072918 this_sequence A062866 A131035 A118745

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson and Mats Granvik (qntmpkt(AT)yahoo.com), May 17 2008

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.


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