44741

Properties

Appears in sequences

• Primes of the form k^2 + k + 9.at n=24A027758
• Doubly balanced primes: primes which are averages of both their immediate and their second neighbors.at n=5A051795
• Numbers n such that 8*9^n +1 is prime.at n=13A056799
• Maximum cycle length in each permutation between A038776(1) and A038776(A000108(n)).at n=12A057542
• Duplicate of A051795.at n=5A081416
• Primes of the form (prime(prime(k)) + prime(prime(k+1)))/2.at n=34A098042
• (1,2,3) Jasinski-like positive power sequence.at n=13A113914
• Numbers k such that the k-th triangular number contains only digits {0,1,9}.at n=17A119048
• Primes p such that 2*prime(p) + 1 = prime(q) for some prime q.at n=43A261361
• P(n,k) is an array read by rows, with n > 0 and k=1..5, where row n gives the chain of 5 consecutive primes {p(i), p(i+1), p(i+2), p(i+3), p(i+4)} having the symmetrical property p(i) + p(i+4) = p(i+1) + p(i+3) = 2*p(i+2) for some index i.at n=27A267028
• Balanced primes of order one ending in 1.at n=34A303092
• Number of twice-partitions of n into odd-length partitions.at n=20A358334
• Primes of the form k! - Sum_{i=1..k-1} (-1)^(k-i)*i!.at n=6A361436
• Prime numbersat n=4650