A112451 Strong pseudoprimes (base-2) equal to product of 4 primes not necessarily distinct.

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

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: A053086 A377951 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