Lesser of twin primes p such that sigma((p-1)/2) + tau((p-1)/2) is a prime.

A358342

Lesser of twin primes p such that sigma((p-1)/2) + tau((p-1)/2) is a prime.

Terms

    a(0) =3a(1) =5a(2) =17a(3) =65537a(4) =1927561217

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