A037108 Trajectory of 3 under map n->21n+1 if n odd, n->n/2 if n even

3, 64, 32, 16, 8, 4, 2, 1, 22, 11, 232, 116, 58, 29, 610, 305, 6406, 3203, 67264, 33632, 16816, 8408, 4204, 2102, 1051, 22072, 11036, 5518, 2759, 57940, 28970, 14485, 304186, 152093, 3193954, 1596977, 33536518

Offset

0,1

Links

Table of n, a(n) for n=0..36.

Formula

a(n) = A033967(n-7), n>=7. - R. J. Mathar, Nov 21 2014

Crossrefs

Sequence in context: A193100 A053857 A175985 * A249097 A092901 A099338

Adjacent sequences: A037105 A037106 A037107 * A037109 A037110 A037111

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved