



1, 2, 1, 3, 3, 1, 4, 6, 3, 1, 5, 10, 7, 3, 1, 6, 15, 14, 7, 3, 1, 7, 21, 25, 15, 7, 3, 1, 8, 28, 41, 30, 15, 7, 3, 1, 9, 36, 63, 56, 31, 15, 7, 3, 1, 10, 45, 92, 98, 62, 31, 15, 7, 3, 1
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OFFSET

0,2


COMMENTS

When formatted as a rectangle R with northwest corner
1, 2, 3, 4, 5, 6, ...
1, 3, 6, 10, 15, 21, ...
1, 3, 7, 14, 25, 41, ...
1, 3, 7, 15, 30, 56, ...
1, 3, 7, 15, 31, 62, ...
...
the following properties hold:
R is the accumulation array of the transpose of A052553 (a version of Pascal's triangle); see A144112 for the definition of accumulation array.
(End)


LINKS



FORMULA



EXAMPLE

First few rows of the triangle:
1;
2, 1;
3, 3, 1;
4, 6, 3, 1;
5, 10, 7, 3, 1;
6, 15, 14, 7, 3, 1;
7, 21, 25, 15, 7, 3, 1;
...


CROSSREFS



KEYWORD



AUTHOR



STATUS

approved



