60887

Properties

Appears in sequences

• Numerator of Sum_{p prime, p-1|n} 1/p.at n=47A027759
• Numerator of sum_{p prime, p-1 divides 2*n} 1/p.at n=23A027761
• Number of (0,1)-strings of length n not containing the substring 0100100.at n=16A062258
• Primes p such that 24*p-1, 24*p+1 and 30*p-1, 30*p+1 are twin primes.at n=11A138695
• Primes p2 such that p1^3 + p2^2 is an average of twin primes and p1 < p2 are consecutive primes.at n=36A138755
• Denominator of Bernoulli_n multiplied by the sum of the associated inverse primes in the Staudt-Clausen theorem, n=1, 2, 4, 6, 8, 10,...at n=24A166306
• Primes p such that prime(p)^2 - 2 = prime(q) for some prime q.at n=48A261354
• a(1) = 2. For n>1, let s denote the binary string of a(n-1) with the leftmost 1 and following consecutive 0's removed. Then a(n) is the smallest prime not yet present whose binary representation begins with s.at n=45A262350
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 581", based on the 5-celled von Neumann neighborhood.at n=39A273071
• Primes that can be generated by the concatenation in base 7, in descending order, of two consecutive integers read in base 10.at n=36A287309
• Primes having only {0, 6, 7, 8} as digits.at n=22A386082
• Prime numbersat n=6134