34213

Properties

Appears in sequences

• Primes which are the sum of the first k nonprimes for some k >= 2.at n=26A128927
• Primes p1 such that p1^2+p2^3=pp are average of twin primes. p1 and p2 consecutive primes, p1 < p2.at n=34A138715
• Numerator of Laguerre(n, 6).at n=14A160631
• Primes p containing the string "13" and sum of digits sod(p) = 13.at n=28A175017
• Triangle read by rows: number of set partitions of n elements with k connectors, 0<=k<n.at n=49A185982
• Number of 4-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero and avoiding the patterns z z+1 z+2 and z z-1 z-2.at n=28A209116
• Number of set partitions of [n] having exactly four pairs (m,m+1) such that m is in some block b and m+1 is in block b+1.at n=6A271791
• Numbers k such that 351*2^k+1 is prime.at n=37A323032
• Primes p such that p+4, 3*p+4 and 3*p+8 are also prime.at n=18A352170
• a(0) = 2. For n >= 1, a(n) is the least prime p such that a(n-1) + p has n prime factors counted with multiplicity.at n=15A363786
• Prime numbersat n=3655