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A112450 Strong pseudoprimes (base-2) equal to product of 3 primes not necessarily distinct. 1
15841, 29341, 52633, 74665, 252601, 314821, 476971, 635401, 1004653, 1023121, 1907851, 1909001, 2419385, 2953711, 3581761, 4335241, 4682833, 5049001, 5444489, 5599765, 5681809, 9069229, 13421773, 15247621, 15510041, 15603391, 17509501, 26254801, 26758057, 27966709 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The term a(11)=1907851 is also a strong pseudoprime to base 5, cf. A020231. M. F. Hasler, Aug 16 2012

LINKS

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

EXAMPLE

a(1) = 15841 = 7*31*73.

CROSSREFS

Intersection of A014612 and A001262.

Sequence in context: A061733 A229643 A216180 * A063847 A265669 A184612

Adjacent sequences:  A112447 A112448 A112449 * A112451 A112452 A112453

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 12 19:26 EDT 2020. Contains 335668 sequences. (Running on oeis4.)