OFFSET
2,1
COMMENTS
a(14) is unknown but conjectured to be 2.
The conjectured sequence is 4, 6, 8, 10, 12, 12, 14, 16, 2, 2, 6, 2, 2, 10, 2, 2, 12, 12, 2...
LINKS
CROSSREFS
KEYWORD
sign,hard,more
AUTHOR
Keenan Pepper, Sep 21 2013
STATUS
approved