1,1
Sequence {b_9(m)} is 1,5,7,2,11,5,7,2,11,... (5,7,2,11) repeats. So a(9) = 4, the length of the cycle in {b_9(m)}.
Cf. A134835.
Sequence in context: A026242 A130526 A174523 * A035583 A145178 A105079
Adjacent sequences: A134831 A134832 A134833 * A134835 A134836 A134837
more,nonn
Leroy Quet Nov 12 2007