1,1
Or composite terms of A064078.
Cf. A143584 A064078 A141232 A122929 A141629 A002326.
Sequence in context: A069386 A069412 A069438 * A065341 A135976 A035892
Adjacent sequences: A131949 A131950 A131951 * A131953 A131954 A131955
nonn
Vladimir Shevelev (shevelev(AT)bgu.ac.il), Aug 26 2008