A274941 Trajectory of 2 under the map x -> A274940(x).

2, 6, 12, 84, 168, 24, 120, 360, 4680, 32760, 65520, 2031120, 4062240, 8124480, 1031808960, 2063617920, 4127235840, 8254471680, 16508943360, 33017886720, 259983360, 8386560, 4193280, 373201920, 8583644160, 25750932480, 1980840960, 282977280, 1414886400, 43861478400

Offset

1,1

Comments

Allan C. Wechsler remarks that the sequence enters a cycle of length 10 at a(136).

References

Allan C. Wechsler, Posting to Math Fun Mailing List, July 16 2016.

Links

Michel Marcus, Table of n, a(n) for n = 1..205

Crossrefs

Cf. A000203, A274939, A273940.

Sequence in context: A144144 A226178 A129085 * A141288 A038787 A144098

Adjacent sequences: A274938 A274939 A274940 * A274942 A274943 A274944

Keyword

nonn

Author

N. J. A. Sloane, Jul 20 2016

Extensions

More terms from Michel Marcus, Jul 20 2016

Status

approved