A145078 - OEIS

A145078

Minimal value of cycle of trajectory of n described in A098282, or -1 if no cycle is ever reached.

1, 1, 1, 1, 1, 9, 1, 9, 9, 9, 1, 9, 9, 14, 9, 1, 1, 1, 9, 9, 1, 9, 9, 1, 25, 1, 1, 1, 9, 9, 1, 1, 25, 1, 1, 1, 9, 1, 1, 9, 9, 1, 14, 1, 9, 9, 9, 9, 1, 9, 1

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,6

COMMENTS

a(52) is currently unknown. - Donovan Johnson

a(40) is probably incorrect and should be 1. (See corrections to A098282 and A144914.) - Andrew Howroyd, Feb 06 2018

LINKS

Table of n, a(n) for n=1..51.

CROSSREFS

Cf. A098282, A087712, A145077, A145079, A077960.

Sequence in context: A309614 A154220 A133919 * A093644 A164791 A107829

Adjacent sequences: A145075 A145076 A145077 * A145079 A145080 A145081

KEYWORD

nonn,more

AUTHOR

David Applegate and N. J. A. Sloane, Feb 09 2009

EXTENSIONS

Comment edited by John W. Layman, Nov 03 2010

a(1)-a(18) confirmed and a(19)-a(39) added by John W. Layman, Nov 03 2010

a(40) and a(51) from Donovan Johnson, Jan 08 2011

STATUS

approved