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A134700
Triangle read by rows: A000012 * A051731^2.
1
1, 3, 1, 5, 1, 1, 8, 3, 1, 1, 10, 3, 1, 1, 1, 14, 5, 3, 1, 1, 1, 16, 5, 3, 1, 1, 1, 1, 20, 8, 3, 3, 1, 1, 1, 1, 23, 8, 5, 3, 1, 1, 1, 1, 1, 27, 10, 5, 3, 3, 1, 1, 1, 1, 1, 29, 10, 5, 3, 3, 1, 1, 1, 1, 1, 1, 35, 14, 8, 5, 3, 3, 1, 1, 1, 1, 1, 1
OFFSET
1,2
COMMENTS
Left column = A006218.
Row sums = A061201: (1, 4, 7, 13, 16, 25, 28, ...).
FORMULA
EXAMPLE
First few rows of the triangle:
1;
3, 1;
5, 1, 1;
8, 3, 1, 1;
10, 3, 1, 1, 1;
14, 5, 3, 1, 1, 1;
16, 5, 3, 1, 1, 1, 1;
20, 8, 3, 3, 1, 1, 1, 1;
23, 8, 5, 3, 1, 1, 1, 1, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Nov 07 2007
EXTENSIONS
a(45) = 1, a(46) = 27 corrected and more terms from Georg Fischer, Jun 05 2023
STATUS
approved