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A132073 A007318 + A131821 - A103451 as infinite lower triangular matrices. +0
2
1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 7, 5, 5, 6, 6, 11, 11, 6, 6, 7, 7, 16, 21, 16, 7, 7, 8, 8, 22, 36, 36, 22, 8, 8, 9, 9, 29, 57, 71, 57, 29, 9, 9, 10, 10, 37, 85, 127, 127, 85, 37, 10, 10 (list; table; graph; listen)
OFFSET

0,2

COMMENT

Row sums = A132074: (1, 4, 9, 16, 27, 46, 81, 148, 279,...).

EXAMPLE

First few rows of the triangle are:

1;

2, 2;

3, 3, 3;

4, 4, 4, 4;

5, 5, 7, 5, 5;

6, 6, 11, 11, 6, 6;

7, 7, 16, 21, 16, 7, 7;

8, 8, 22, 36, 36, 22, 8, 8;

9, 9, 29, 57, 71, 57, 29, 9, 9;

10, 10, 37, 85, 127, 127, 85, 37, 10, 10;

...

CROSSREFS

Cf. A007318, A131821, A103451, A132074.

Sequence in context: A026099 A049727 A060802 this_sequence A087817 A087836 A091497

Adjacent sequences: A132070 A132071 A132072 this_sequence A132074 A132075 A132076

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 09 2007

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Last modified December 3 01:16 EST 2008. Contains 151161 sequences.


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