OFFSET
1,2
COMMENTS
If a(1,2,3)=1 sums of rows give A001077.
EXAMPLE
Triangle begins:
1
2,2
4,9,4
8,28,28,8
16,76,121,76,16
32,192,422,422,192,32
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Mark Dols, Sep 10 2009
STATUS
approved