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A296117
Base-2 pseudoprimes of the form 2*p*q where p and q are primes.
1
161038, 49699666, 760569694, 4338249646, 357647681422, 547551530002, 3299605275646, 22999986587854, 42820164121582, 55173914702146, 69345154539266, 353190859033982
OFFSET
1,1
COMMENTS
a(5) and a(10) are found by McDaniel (1989).
Terms in this sequence are of the form 2pq where p and q are distinct odd primes (A075819). - Charles R Greathouse IV, Dec 05 2017
LINKS
PROG
(PARI) list(lim)=my(v=List(), pq); forprime(p=3, lim\6, forprime(q=3, min(lim\(2*p), p), pq=p*q; if(Mod(4, pq)^pq==2, listput(v, 2*pq)))); Set(v) \\ Charles R Greathouse IV, Dec 05 2017
CROSSREFS
Subsequence of A006935 and hence of A015919.
The even terms of A215672.
Intersection of A006935 and A215672. - Felix Fröhlich, Dec 05 2017
Sequence in context: A108162 A270973 A287297 * A176770 A038681 A339676
KEYWORD
nonn,more
AUTHOR
Max Alekseyev, Dec 05 2017
STATUS
approved