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A140582
Triangle read by rows, A000012 * A140581.
1
1, 2, 1, 4, 1, 1, 4, 2, 1, 1, 8, 2, 1, 1, 1, 5, 4, 2, 1, 1, 1, 11, 4, 2, 1, 1, 1, 1, 11, 4, 2, 2, 1, 1, 1, 1, 11, 4, 4, 2, 1, 1, 1, 1, 1, 6, 8, 4, 2, 2, 1, 1, 1, 1, 1, 16, 8, 4, 2, 1, 1, 1, 1, 1, 1, 16, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 28, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1
OFFSET
0,2
COMMENTS
Row sums = A072107: (1, 3, 6, 8, 13, 14,...).
FORMULA
Triangle read by rows, A000012 * A140581; where A000012 = the infinite lower triangular matrix with all 1's: [1; 1,1; 1,1,1;...].
EXAMPLE
First few rows of the triangle are:
1;
2, 1;
4, 1, 1;
4, 2, 1, 1;
8, 2, 1, 1, 1;
5, 4, 2, 1, 1, 1;
11, 4, 2, 1, 1, 1, 1;
11, 4, 2, 2, 1, 1, 1, 1;
11, 4, 4, 2, 1, 1, 1, 1, 1;
6, 8, 4, 2, 2, 1, 1, 1, 1, 1;
...
CROSSREFS
Sequence in context: A072918 A255878 A162944 * A062866 A131035 A339833
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson and Mats Granvik, May 17 2008
STATUS
approved