66697

Properties

Appears in sequences

• Least prime in A023200 (lesser of 4-twins) such that the distance to the next 4-twin is 6*n.at n=36A052351
• a(n) = a(n-1) + a(n-2) + R(a(n-3)) + R(a(n-4)) where a(1)=a(2)=a(3)=a(4)=1 and R(n) (A004086) is the reverse of n.at n=18A074864
• Let p run through the primes; write p in base 10 and then interpret it in base 128 getting a number q; if q is prime then adjoin q to the sequence.at n=22A090718
• Primes with minimal digit = 6.at n=29A106106
• Beastly primes (version 2): primes containing 666 as a substring.at n=11A131645
• Primes having only {6, 7, 9} as digits.at n=23A261184
• Number of non-crossing multiset partitions of normal multisets of size n.at n=8A324171
• Terms k of A112998 such that k+2 is nonsquarefree.at n=34A328160
• Primes having only {0, 6, 7, 9} as digits.at n=44A386083
• Prime numbersat n=6647