A214895 Conway's subprime Fibonacci sequence starting with (23, 162).

23, 162, 37, 199, 118, 317, 145, 231, 188, 419, 607, 513, 560, 37, 199

Offset

1,1

Comments

Similar to the Fibonacci recursion starting with (23, 162), but each new nonprime term is divided by its least prime factor. Sequence enters a loop of length 11 after 4 terms on reaching (37, 199).

Links

Table of n, a(n) for n=1..15.

Richard K. Guy, Tanya Khovanova, and Julian Salazar, Conway's subprime Fibonacci sequences, arXiv:1207.5099 [math.NT]

Mathematica

see A214674

Crossrefs

Cf. A000045, A020639, A175723, A214551, A014682, A214674, A214892-A214898.

Sequence in context: A133253 A098713 A263475 * A042022 A142091 A168027

Adjacent sequences: A214892 A214893 A214894 * A214896 A214897 A214898

Keyword

nonn

Author

Wouter Meeussen, Jul 29 2012

Status

approved