A226615 - OEIS

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A226615

Length of the Collatz-like 3x+k cycle associated with A226614(n).

2

2, 3, 6, 4, 7, 5, 20, 11, 12, 28, 6, 38, 44, 48, 72, 18, 106, 29, 75, 7, 37, 14, 10, 42, 72, 66, 10, 68, 38, 58, 72, 8, 43, 110, 22, 33, 68, 29, 42, 71, 13, 46, 121, 28, 182, 200, 47, 9, 21, 60, 108, 28, 156, 19, 22, 85, 79, 151, 62, 56, 71, 60, 78, 226, 104, 192

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OFFSET

1,1

LINKS

Geoffrey H. Morley, Table of n, a(n) for n = 1..10000

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

FORMULA

a(n) = A226609(A226612(floor(A226614(n)/3)+1)).

For n>227, this formula requires terms beyond A226609(10000).

PROG

(PARI) See A226614.

CROSSREFS

Sequence in context: A348243 A019567 A098286 * A138608 A092283 A266191

Adjacent sequences: A226612 A226613 A226614 * A226616 A226617 A226618

KEYWORD

nonn

AUTHOR

Geoffrey H. Morley, Aug 02 2013

STATUS

approved