OFFSET
0,6
COMMENTS
Row sums give A048194.
LINKS
EXAMPLE
[1], [0,1], [0,0,2], [0,0,1,3], [0,0,1,3,5], [0,0,1,5,8,7], ...; There are 21=1+5+8+7 minimal covers of an unlabeled 5-set.
CROSSREFS
KEYWORD
AUTHOR
Vladeta Jovovic, Sep 04 2000
STATUS
approved