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Search: id:A127735
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A127735 A127704 * A002260. +0
3
1, 3, 4, 4, 8, 9, 5, 10, 15, 16, 6, 12, 18, 24, 25, 7, 14, 21, 35, 36, 8, 16, 24, 32, 40, 48, 49, 9, 18, 27, 36, 45, 54, 63, 64, 10, 20, 30, 40, 50, 60, 70, 80, 81 (list; table; graph; listen)
OFFSET

1,2

FORMULA

A127704 * A002260 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

3, 4;

4, 8, 9;

5, 10, 15, 16;

6, 12, 18, 24, 25;

...

CROSSREFS

Row sums = A127735: (1, 7, 21, 46, 85, 141, ...).

Sequence in context: A094948 A010612 A021033 this_sequence A075550 A137529 A086180

Adjacent sequences: A127732 A127733 A127734 this_sequence A127736 A127737 A127738

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Jan 26 2007

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Last modified September 6 09:40 EDT 2008. Contains 143480 sequences.


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