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A134224 A004736 + A134082 - I as infinite lower triangular matrices; I = Identity matrix. +0
5
1, 4, 1, 3, 6, 1, 4, 3, 8, 1, 5, 4, 3, 10, 1, 6, 5, 4, 3, 12, 1, 7, 6, 5, 4, 3, 14, 1, 8, 7, 6, 5, 4, 3, 16, 1, 9, 8, 7, 6, 5, 4, 3, 18, 1, 10, 9, 8, 7, 6, 5, 4, 3, 20, 1 (list; table; graph; listen)
OFFSET

0,2

COMMENT

Row sums = A052905: (1, 5, 10, 16, 23, 31, 40,...).

EXAMPLE

First few rows of the triangle are:

1;

4, 1;

3, 6, 1;

4, 3, 8, 1;

5, 4, 3, 10, 1;

6, 5, 4, 3, 12, 1;

7, 6, 5, 4, 3, 14, 1;

...

CROSSREFS

Cf. A004736, A052905, A134082.

Sequence in context: A078147 A058303 A090724 this_sequence A121441 A074813 A109531

Adjacent sequences: A134221 A134222 A134223 this_sequence A134225 A134226 A134227

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 14 2007

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Last modified December 4 21:35 EST 2008. Contains 151309 sequences.


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