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A112451 Strong pseudoprimes (base-2) equal to product of 4 primes not necessarily distinct. 0
800605, 4502485, 5310721, 7177105, 9995671, 10655905, 11473885, 13216141, 15698431, 21417991, 22564081, 29878381, 36338653, 38624041, 43397551, 45485881, 45769645, 48369727, 51340807, 57561085, 77576401, 81445585 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(1)=800605=5*13*109*113

CROSSREFS

Cf. A001262.

Sequence in context: A206135 A053086 A106781 * A069338 A186585 A178290

Adjacent sequences:  A112448 A112449 A112450 * A112452 A112453 A112454

KEYWORD

nonn

AUTHOR

Shyam Sunder Gupta (guptass(AT)rediffmail.com), Dec 12 2005

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Last modified February 16 04:18 EST 2012. Contains 205860 sequences.