OFFSET
1,4
COMMENTS
Left column = A023896: (1, 1, 3, 4, 10, 6, 21, ...).
EXAMPLE
First few rows of the triangle:
1;
1, 0;
3, 2, 0;
4, 0, 3, 0;
10, 5, 3, 4, 0;
6, 0, 0, 0, 5, 0;
21, 9, 7, 4, 5, 6, 0;
16, 0, 3, 0, 5, 0, 7, 0;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Apr 05 2007
EXTENSIONS
a(21) = 0 inserted and more terms from Georg Fischer, May 29 2023
STATUS
approved