1,1

A cycle is called primitive if its elements are not a common multiple of the elements of another cycle.

The 3x-k function T_k is defined by T_k(x) = x/2 if x is even, (3x-k)/2 if x is odd.

For primitive cycles, GCD(k,6)=1.

Table of n, a(n) for n=1..13.

k = A226682(n).

Cf. A226623, A226665.

Sequence in context: A232882 A119768 A232878 * A005808 A180559 A272478

Adjacent sequences: A226678 A226679 A226680 * A226682 A226683 A226684

nonn

Geoffrey H. Morley, Jun 16 2013

approved