OFFSET
1,4
COMMENTS
Row sums = A004277, 1 followed by even terms: (1, 2, 4, 6, 8, 10, ...).
FORMULA
EXAMPLE
First few rows of the triangle:
1;
1, 1;
3, 0, 1;
3, 2, 0, 1;
6, 0, 1, 0, 1;
4, 3, 1, 1, 0, 1;
10, 0, 0, 0, 1, 0, 1;
6, 4, 1, 1, 0, 1, 0, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, May 02 2007
STATUS
approved