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A049420 Numbers n such that (n!/n#)+1 is prime, where n# = primorial numbers A034386. 3
4, 8, 14, 20, 26, 34, 56, 104, 153, 182, 194, 217, 230, 280, 462, 529, 1445, 2515, 3692 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Note that n!/n# is known as n compositorial.

LINKS

Chris Caldwell, Compositorial

CROSSREFS

Sequence in context: A066941 A176949 A173522 * A055507 A121896 A173290

Adjacent sequences:  A049417 A049418 A049419 * A049421 A049422 A049423

KEYWORD

nonn

AUTHOR

Paul Jobling (paul.jobling(AT)whitecross.com)

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.