



1, 2, 2, 3, 5, 3, 4, 7, 7, 4, 5, 9, 11, 9, 5, 6, 11, 16, 16, 11, 6, 7, 13, 22, 27, 22, 13, 7, 8, 15, 29, 43, 43, 29, 15, 8, 9, 17, 37, 65, 79, 65, 37, 17, 9, 10, 19, 46, 94, 136, 136, 94, 46, 19, 10
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OFFSET

0,2


COMMENTS

Row sums = A132072: (1, 4, 11, 22, 39, 66, 111,...).


LINKS

Table of n, a(n) for n=0..54.


EXAMPLE

First few rows of the triangle are:
1;
2, 2;
3, 5, 3;
4, 7, 7, 4;
5, 9, 11, 9, 5;
6, 11, 16, 16, 11, 6;
7, 13, 22, 27, 22, 13, 7;
...


CROSSREFS

Cf. A007318, A002024, A103451, A132072.
Sequence in context: A204012 A131901 A204000 * A061177 A129312 A115262
Adjacent sequences: A132068 A132069 A132070 * A132072 A132073 A132074


KEYWORD

nonn,tabl


AUTHOR

Gary W. Adamson, Aug 09 2007


STATUS

approved



