OFFSET
1,1
COMMENTS
The home primes of the sequence are A118756.
REFERENCES
J. Heleen, Family Numbers: Constructing Primes By Prime Factor Splicing, J. Rec. Math. 28 (1996-97), 116-119.
LINKS
P. de Geest, Home Primes < 100 and Beyond
Eric Weisstein's World of Mathematics, Home Prime.
Wikipedia, Home prime
EXAMPLE
The home prime of the four numbers 42, 74, 237, and 379 is 379 (for example, 42 = 2*3*7 -> 237 = 3*79 -> 379 which is prime), so a(4) = 42.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Jonathan Sondow, Aug 09 2012
STATUS
approved