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A053608 Numbers x=LCM(1,2,...,n) such that x^2 + 1 is prime. 1
1, 2, 6, 420, 360360, 718766754945489455304472257065075294400 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

A051451, A049536, A046029, A051739, A053609.

Sequence in context: A135014 A092024 A069261 * A199239 A123261 A124061

Adjacent sequences:  A053605 A053606 A053607 * A053609 A053610 A053611

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Feb 09 2000

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Last modified February 16 10:07 EST 2012. Contains 205904 sequences.