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A112451 Strong pseudoprimes (base-2) equal to product of 4 primes not necessarily distinct. 1
800605, 4502485, 5310721, 7177105, 9995671, 10655905, 11473885, 13216141, 15698431, 21417991, 22564081, 29878381, 36338653, 38624041, 43397551, 45485881, 45769645, 48369727, 51340807, 57561085, 77576401, 81445585, 86067241, 90626185, 104852881, 112792519, 115007581 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Amiram Eldar, Table of n, a(n) for n = 1..10000

EXAMPLE

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

CROSSREFS

Intersection of A014613 and A001262.

Sequence in context: A237543 A053086 A106781 * A235006 A231629 A231090

Adjacent sequences:  A112448 A112449 A112450 * A112452 A112453 A112454

KEYWORD

nonn

AUTHOR

Shyam Sunder Gupta, Dec 12 2005

EXTENSIONS

More terms from Amiram Eldar, Nov 10 2019

STATUS

approved

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Last modified July 8 19:20 EDT 2020. Contains 335524 sequences. (Running on oeis4.)