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A037926 Trajectory of 20 under prime factor concatenation procedure. 0
20, 2, 2, 5, 3, 3, 5, 5, 5, 11, 61, 11, 4651, 3, 3, 12739, 17, 194867, 19, 41, 22073, 709, 273797, 3, 97, 137, 17791, 11, 3610337981, 7, 3391, 4786213, 3, 3, 3, 3, 7, 23, 31, 1815403, 13, 17, 23, 655857429041, 3, 31, 8308475676071413 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..46.

P. De Geest, Home Primes

CROSSREFS

Cf. A037273.

Sequence in context: A040394 A040393 A040396 * A040397 A040398 A303847

Adjacent sequences:  A037923 A037924 A037925 * A037927 A037928 A037929

KEYWORD

fini,full,nonn,tabl,base

AUTHOR

Jeff Burch

EXTENSIONS

Edited by Charles R Greathouse IV, Apr 30 2010

STATUS

approved

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Last modified September 23 06:51 EDT 2018. Contains 315273 sequences. (Running on oeis4.)