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A134520 A007318 + A128174 - A000012 as infinite lower triangular matrices. +0
1
1, 0, 1, 1, 1, 1, 0, 3, 2, 1, 1, 3, 6, 3, 1, 0, 5, 9, 10, 4, 1, 1, 5, 15, 19, 15, 5, 1, 0, 7, 20, 35, 34, 21, 6, 1, 1, 7, 28, 55, 70, 55, 28, 7, 1, 1, 9, 35, 84, 125, 126, 83, 36, 8, 1 (list; table; graph; listen)
OFFSET

0,8

COMMENT

Row sums = A084174: (1, 1, 3, 6, 14, 29, 61,...).

EXAMPLE

First few rows of the triangle are;

1;

0, 1;

1, 1, 1;

0, 3, 2, 1;

1, 3, 6, 3, 1;

0, 5, 9, 10, 4, 1;

1, 5, 15, 19, 15, 5, 1;

0, 7, 20, 35, 34, 21, 6, 1;

1, 7, 28, 55, 70, 55, 28, 7, 1;

...

CROSSREFS

Cf. A128174, A084174.

Sequence in context: A010268 A053542 A087284 this_sequence A053989 A097794 A137683

Adjacent sequences: A134517 A134518 A134519 this_sequence A134521 A134522 A134523

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 29 2007

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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