OFFSET
7,1
COMMENTS
It is not known whether a(6)>0.
Further values are a(19)=9, a(21)=7, a(22)=6, a(29)=5, a(36)=3, a(64)=2. The last of these is most probably the last nonzero term of the sequence.
CROSSREFS
KEYWORD
nonn,more,hard
AUTHOR
M. F. Hasler, Dec 17 2014
STATUS
approved