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A130267
0
1, 2, 2, 2, 1, 3, 3, 3, 1, 4, 2, 1, 1, 1, 5, 4, 4, 4, 1, 1, 6, 2, 1, 1, 1, 1, 1, 7, 4, 4, 2, 5, 1, 1, 1, 8, 3, 2, 4, 1, 1, 1, 1, 1, 9, 4, 4, 2, 2, 6, 1, 1, 1, 1, 10
OFFSET
0,2
COMMENTS
Row sums = A129235: (1, 4, 6, 11, 10, 20, ...).
Left border = A000005, d(n): (1, 2, 2, 3, 2, 4, ...).
FORMULA
Inverse Moebius transform of A051340.
EXAMPLE
First few rows of the triangle:
1;
2, 2;
2, 1, 3;
3, 3, 1, 4;
2, 1, 1, 1, 5;
4, 4, 4, 1, 1, 6;
2, 1, 1, 1, 1, 1, 7;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, May 18 2007
STATUS
approved