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

Author

Shyam Sunder Gupta, Dec 12 2005

Keywords

• nonn

Examples

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

Links

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

Crossrefs

Intersection of A014613 and A001262.

Extensions

More terms from Amiram Eldar, Nov 10 2019