



1, 3, 1, 1, 3, 1, 3, 3, 3, 1, 1, 5, 5, 3, 1, 3, 5, 7, 7, 3, 1, 1, 7, 11, 9, 9, 3, 1, 3, 7, 13, 19, 11, 11, 3, 1, 1, 9, 19, 21, 29, 13, 13, 3, 1, 3, 9, 21, 39, 31, 41, 15, 15, 3, 1
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OFFSET

1,2


COMMENTS

Row sums = A131780: (1, 4, 5, 10, 15, 26, 41, ...), a sequence with a(n)/a(n1) tending to phi.
A131779 is a companion triangle, same row sums.


LINKS



EXAMPLE

First few rows of the triangle:
1;
3, 1;
1, 3, 1;
3, 3, 3, 1;
1, 5, 5, 3, 1;
3, 5, 7, 7, 3, 1;
1, 7, 11, 9, 9, 3, 1;
3, 7, 13, 19, 11, 11, 3, 1;
...


CROSSREFS



KEYWORD



AUTHOR



STATUS

approved



