login
A134544
1
1, 2, 2, 2, 2, 3, 3, 4, 3, 4, 2, 2, 3, 4, 5, 4, 6, 6, 4, 5, 6, 2, 2, 3, 4, 5, 6, 7, 4, 6, 6, 8, 5, 6, 7, 8, 3, 4, 6, 4, 5, 6, 7, 8, 9, 4, 6, 6, 8, 10, 6, 7, 8, 9, 10
OFFSET
1,2
COMMENTS
Row sums = A007437: (1, 4, 7, 14, 16, 3, 29, 50, ...).
Left border = A000010.
FORMULA
A051731 * A002260 as infinite lower triangular matrices.
EXAMPLE
First few rows of the triangle:
1;
2, 2;
2, 2, 3;
3, 4, 3, 4;
2, 2, 3, 4, 5;
4, 6, 6, 4, 5, 6;
2, 2, 3, 4, 5, 6, 7;
4, 6, 6, 8, 5, 6, 7, 8;
3, 4, 6, 4, 5, 6, 7, 8, 9;
4, 6, 6, 8, 10, 6, 7, 8, 9, 10;
...
CROSSREFS
KEYWORD
nonn,tabl,more
AUTHOR
Gary W. Adamson, Oct 31 2007
STATUS
approved