A129613
a(n) is the smallest natural number m such that 2^(2^k) + m is prime for k=0,1,...,n.
Original entry on oeis.org
1, 1, 1, 1, 1, 15, 66747, 475425, 12124167, 14899339905, 8073774344085
Offset: 0
A090872
a(n) is the smallest number m greater than 1 such that m^(2^k)+1 for k=0,1,...,n are primes.
Original entry on oeis.org
2, 2, 2, 2, 2, 7072833120, 2072005925466, 240164550712338756
Offset: 0
a(5)=7072833120 because 7072833120^2^k+1 for k=0,1,2,3,4,5 are primes.
A090875
a(n) is the smallest number m such that m^(2^k) + 2^(2^k) is prime for k=0,1,...,n.
Original entry on oeis.org
1, 1, 1, 1, 1, 2321204055, 37185086099807
Offset: 0
a(5)=2321204055 because 2321204055 is the smallest number m such that m^(2^k) + 2^(2^k) is prime for k=0,1,2,3,4 and 5.
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