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A134870
1
1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1
OFFSET
1,8
COMMENTS
Row sums = A134871: (1, 2, 3, 5, 5, 8, 7, 10, 10, 12, 11, ...).
FORMULA
A051731 + A000012 - A103451 as infinite lower triangular matrices.
EXAMPLE
First few rows of the triangle:
1;
1, 1;
1, 1, 1;
1, 2, 1, 1;
1, 1, 1, 1, 1;
1, 2, 2, 1, 1, 1;
1, 1, 1, 1, 1, 1, 1;
1, 2, 1, 2, 1, 1, 1, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Nov 14 2007
STATUS
approved