A368228 Main diagonal of A368227: the n-th term in the trajectory of n under the A006369 map.

0, 1, 2, 2, 6, 5, 4, 6, 41, 7, 86, 129, 97, 68, 49, 68, 49, 287, 102, 137, 102, 137, 385, 538, 183, 513, 361, 511, 338, 481, 681, 1791, 161, 855, 605, 801, 271, 751, 538, 356, 1939, 1325, 890, 637, 111, 1194, 380, 2111, 755, 1977, 163, 1887, 601, 1701, 563, 12403, 513, 1491, 7802

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) = A368227(n,n).

Mathematica

A368228[n_]:=Nest[If[Divisible[#, 3], 2#/3, Round[4#/3]]&, n, n];
Array[A368228, 100, 0]

Crossrefs

Cf. A006369, A368179, A368180, A368227.

Sequence in context: A122070 A181661 A144160 * A275142 A200226 A300628

Adjacent sequences: A368225 A368226 A368227 * A368229 A368230 A368231

Keyword

nonn,easy

Author

Paolo Xausa, Dec 18 2023

Status

approved