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A071714 Numbers n such that Rd(n) + Ld(n) +/-1 is prime, where Rd and Ld are the right- and left-digital factorial functions. 0
2, 3, 6, 9, 33, 90, 102, 195, 210, 276, 379, 380, 402, 414, 575, 588, 616, 618, 916, 939, 980, 984, 1110, 1112, 1210, 1314, 1614, 2132, 2136, 2166, 2190, 2280, 2372, 2394, 2438, 2468, 2730, 2780, 3360, 3436, 3510, 3816, 3842, 3940, 3950, 4222, 4236, 4344 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

195 is a term because (195*95*5)+(195*19*1)+1 = 96331 and (195*95*5)+(195*19*1)-1 = 96329 are both prime.

CROSSREFS

Cf. A067079, A067080.

Sequence in context: A133385 A002076 A145761 * A077753 A058911 A191542

Adjacent sequences:  A071711 A071712 A071713 * A071715 A071716 A071717

KEYWORD

base,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Jun 03 2002

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Last modified February 15 05:45 EST 2012. Contains 205694 sequences.