A368180 Main diagonal of A368179: the n-th term in the trajectory of n under the A006368 map.

0, 1, 2, 2, 5, 5, 9, 4, 51, 6, 34, 57, 48, 38, 132, 48, 167, 32, 205, 167, 130, 106, 167, 243, 50, 159, 125, 369, 297, 119, 702, 130, 844, 84, 500, 50, 1215, 119, 1424, 142, 840, 312, 126, 3041, 70, 7209, 22143, 540, 1623, 160, 15165, 1443, 8867, 3406, 10509, 1899, 12146, 578, 911, 79

Offset

0,3

Links

Paolo Xausa, Table of n, a(n) for n = 0..10000

Index entries for sequences related to 3x+1 (or Collatz) problem

Formula

a(n) = A368179(n,n).

Mathematica

A368180[n_]:=Nest[If[OddQ[#], Floor[(3#+2)/4], 3#/2]&, n, n];
Array[A368180, 100, 0]

Crossrefs

Cf. A006368, A368179.

Sequence in context: A325535 A345165 A062405 * A071181 A213675 A321185

Adjacent sequences: A368177 A368178 A368179 * A368181 A368182 A368183

Keyword

nonn,easy

Author

Paolo Xausa, Dec 15 2023

Status

approved