A071887 Conjectured values of n whose trajectory under map x -> A002487(x)*A002487(x+1) does not go into a cycle.

37, 38, 41, 54, 57, 58

Offset: 1

Author

J. H. Conway, Jun 10 2002

Keywords

• nonn
• more

Comments

Why isn't 42 in this list? It does not enter a cycle in under 100 iterations which is as far as I could check. [Sean A. Irvine, Oct 05 2011]

Crossrefs

Cf. A002487, A070871, A071884, A071885, A071886.