42337

Properties

Appears in sequences

• Primes of the form 6*k^2 + 1.at n=23A090687
• Balanced primes of order ten.at n=20A096702
• Primes p such that p + googol is prime.at n=28A108250
• n times n+7 gives the concatenation of two numbers m and m+1.at n=5A116298
• Largest prime factor of n!! + (n+1)!!.at n=27A118333
• Prime numbers p such that p +- ((p-1)/6) are primes.at n=42A137724
• a(n) = 54*n^2 + 1.at n=28A158646
• Number of binary strings of length n with no substrings equal to 0000, 0010, or 0110.at n=20A164419
• Primes of the form 2*n^2+6*n+1.at n=23A176549
• Number of 3 X 3 X 3 triangular 0..n arrays with every horizontal row nondecreasing and having the same average value.at n=35A214907
• a(n) = smallest prime q > a(n-1) such that 2*prime(n)*q^prime(n)+1 is also prime.at n=14A225747
• Primes p such that p + 4, p + 16, p + 64, p + 256 and p + 1024 are all semiprimes.at n=35A241493
• Number of partitions p of n such that (number of even numbers in p) > (number of odd numbers in p).at n=48A241640
• Number of (n+2) X (7+2) 0..4 arrays with every consecutive three elements in every row and diagonal having exactly two distinct values, and in every column and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=8A252960
• Centered 21-gonal primes.at n=15A276261
• Prime numbersat n=4426