52211

Appears in sequences

• p^2-p-1 that is not prime, where p is prime.at n=30A119609
• Numbers n of the form p^2-p-1 = A165900(p), for prime p, such that n^2-n-1 = A165900(n) is also prime.at n=12A237527
• Concatenation of multiplicities of prime divisors of highly composite numbers A002182(n).at n=35A245500
• Triangle read by rows: T(n,m) = Sum_{k=0..n} C(k-1,m-1)*C(k,m-1)*C(n+k-1,n-k)/m.at n=38A257142
• Numbers k such that k![4] + 2 is prime, where k![4] = A007662(k) = quadruple factorial.at n=48A283553
• a(n) = (prime(1+n)*prime(n)) + prime(n) + 1.at n=48A286624
• Numbers k such that replacing each digit d in the decimal expansion of k with d^3 yields a prime each time, when done recursively three times.at n=19A316982
• a(n) = (p_n + 1)*q_n - 1; where (p_n, q_n) is the n-th twin prime pair.at n=15A328493
• Consecutive states of the linear congruential pseudo-random number generator for Smalltalk-80 when started at 1.at n=22A384220