A087972 - OEIS

%I #9 Jun 04 2024 01:26:31

%S 2,4,16,52,9232,244,9232,2464,10528,19684,88576,2270104,1008916,

%T 1594324,7174456,65451076,64570084,129140164,1570824736,1961316232,

%U 8825923024,10460353204,47071589416,105911076184,423644304724,66034034786644

%N Maximal term in Collatz-iteration started at 3^n+1.

%H Amiram Eldar, <a href="/A087972/b087972.txt">Table of n, a(n) for n = 0..1000</a>

%F a(n) = A025586(3^n+1).

%Y Cf. A025586, A087701, A087973.

%K nonn

%O 0,1

%A _Labos Elemer_, Sep 24 2003

%E Offset changed to 0 and a(0) prepended by _Amiram Eldar_, Jun 04 2024