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A133380 A055450 + A030111 - A000012 as infinite lower triangular matrices. +0
1
1, 1, 1, 3, 1, 1, 4, 5, 1, 1, 7, 6, 7, 1, 1, 10, 13, 8, 9, 1, 1, 16, 17, 21, 10, 11, 1, 24, 30, 26, 31, 12, 13, 1, 1, 38, 42, 52, 37, 43, 14, 15, 1, 1, 59, 69, 69, 84, 50, 57, 16, 17, 1, 1 (list; table; graph; listen)
OFFSET

1,4

COMMENT

Row sums = A134508

EXAMPLE

First few rows of the triangle are:

1;

1, 1;

3, 1, 1;

4, 5, 1, 1;

7, 6, 7, 1, 1;

10, 13, 8, 9, 1, 1;

16, 17, 21, 10, 11, 1, 1;

24, 30, 26, 31, 12, 13, 1, 1;

38, 42, 52, 37, 43, 14, 15, 1, 1;

...

CROSSREFS

Cf. A055450, A030111, A134508.

Sequence in context: A135226 A104730 A131238 this_sequence A105687 A058879 A025255

Adjacent sequences: A133377 A133378 A133379 this_sequence A133381 A133382 A133383

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 28 2007

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Last modified December 4 20:00 EST 2008. Contains 151309 sequences.


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