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A130266 A051340 * A128174. +0
1
1, 1, 2, 4, 1, 3, 2, 5, 1, 4, 7, 2, 6, 1, 5, 3, 8, 2, 7, 1, 6, 10, 3, 9, 2, 8, 1, 7, 4, 11, 3, 10, 2, 9, 1, 8, 13, 4, 12, 3, 11, 2, 10, 1, 9, 5, 14, 4, 13, 3, 12, 2, 11, 1, 10 (list; table; graph; listen)
OFFSET

0,3

COMMENT

Row sums = A014255: (1, 3, 8, 12, 21, 27, 40,...). Left border = A123684: (1, 1, 4, 2, 7, 3, 10, 4,...).

FORMULA

A051340 * A128174 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

1, 2;

4, 1, 3;

2, 5, 1, 4;

7, 2, 6, 1, 5;

3, 8, 2, 7, 1, 6;

10, 3, 9, 2, 8, 1, 7;

...

CROSSREFS

Cf. A051340, A128174, A014255, A123684.

Adjacent sequences: A130263 A130264 A130265 this_sequence A130267 A130268 A130269

Sequence in context: A050980 A053451 A141843 this_sequence A117137 A002344 A011233

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), May 18 2007

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.


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