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A039505 Odd numbers from A039502. 11
17, 21, 23, 25, 31, 33, 37, 41, 45, 49, 55, 61, 67, 73, 83, 91, 99, 109, 111, 117, 123, 131, 147, 153, 163, 165, 175, 179, 185, 195, 197, 209, 213, 219, 221, 225, 229, 233, 239, 243, 247, 257, 261, 263, 267, 277, 279, 291, 293, 295, 305, 311, 313, 319, 321 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..55.

MATHEMATICA

colln[n_]:= NestWhile[If[EvenQ[#], #/2, 3#-1] &, n, FreeQ[{1, 5, 17}, #] &]; Select[Range[1, 321, 2], colln[#] == 17 &] (* Jayanta Basu, Jun 06 2013 *)

CROSSREFS

Cf. A037084, A039500-A039504.

Sequence in context: A069961 A140146 A039502 * A166875 A128546 A188200

Adjacent sequences:  A039502 A039503 A039504 * A039506 A039507 A039508

KEYWORD

nonn,easy

AUTHOR

Christian G. Bower, Feb 15 1999.

STATUS

approved

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Last modified October 22 05:51 EDT 2014. Contains 248388 sequences.