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Number of times each term of the sequence A025586 (largest value in Collatz trajectory of n) occurs.
1

%I #14 Aug 03 2016 10:42:09

%S 1,1,1,1,6,1,1,1,3,1,12,1,3,1,1,1,1,8,1,3,1,3,1,1,1,3,1,3,1,13,1,1,1,

%T 3,1,8,1,3,1,1,1,6,1,3,3,1,1,1,1,3,1,1,14,1,1,1,1,1,6,1,3,1,1,1,1,1,1,

%U 3,1,1,1,3,6,1,1,1,1,3,1,1,1,8,1,3,1,3

%N Number of times each term of the sequence A025586 (largest value in Collatz trajectory of n) occurs.

%C The possible values of the sequence A025586 are in A033496. Value A033496(n) occurs exactly a(n) times.

%e a(5) = 6 because there is 6 numbers m such that A025586(m) = A033496(5) = 16: 3, 5, 6, 10, 12 and 16.

%e See A095387; there is 1579 numbers m such that A025586(m) = 9232 = A033496(940); a(940) = 1579.

%Y Cf. A025586, A033496.

%K nonn

%O 1,5

%A _Jaroslav Krizek_, Jul 16 2016