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A112451 Strong pseudoprimes (base-2) equal to product of 4 primes not necessarily distinct. 1

%I

%S 800605,4502485,5310721,7177105,9995671,10655905,11473885,13216141,

%T 15698431,21417991,22564081,29878381,36338653,38624041,43397551,

%U 45485881,45769645,48369727,51340807,57561085,77576401,81445585,86067241,90626185,104852881,112792519,115007581

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

%H Amiram Eldar, <a href="/A112451/b112451.txt">Table of n, a(n) for n = 1..10000</a>

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

%Y Intersection of A014613 and A001262.

%K nonn

%O 1,1

%A _Shyam Sunder Gupta_, Dec 12 2005

%E More terms from _Amiram Eldar_, Nov 10 2019

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Last modified October 6 04:09 EDT 2022. Contains 357261 sequences. (Running on oeis4.)