A037120 Trajectory of 3 under map n->45n+1 if n odd, n->n/2 if n even.

3, 136, 68, 34, 17, 766, 383, 17236, 8618, 4309, 193906, 96953, 4362886, 2181443, 98164936, 49082468, 24541234, 12270617, 552177766, 276088883, 12423999736, 6211999868, 3105999934, 1552999967

Offset

0,1

Links

Harvey P. Dale, Table of n, a(n) for n = 0..1000

Mathematica

NestList[If[EvenQ[#], #/2, 45#+1]&, 3, 30] (* Harvey P. Dale, Jul 08 2019 *)

Crossrefs

Sequence in context: A361195 A136411 A193136 * A082923 A336202 A231904

Adjacent sequences: A037117 A037118 A037119 * A037121 A037122 A037123

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved