A139437 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A139437

Numbers having exactly one partition into initial terms of a Collatz trajectory starting with a value less than n.

%I #2 Mar 30 2012 18:51:00

%S 3,5,6,8,10,11,16,17,20,23,25,32,41

%N Numbers having exactly one partition into initial terms of a Collatz trajectory starting with a value less than n.

%C A139436(a(n)) = 1.

%C Conjecture: the sequence is finite and a(13)=41 is the largest term.

%K nonn,fini,full

%O 1,1

%A _Reinhard Zumkeller_, Apr 21 2008