34231

Properties

Appears in sequences

• Largest prime factor of 1 + (product of first n primes).at n=9A002585
• Primes of form 210*p + 1 where p is a prime.at n=20A051648
• Primes of the form k^2+6.at n=17A056909
• Expansion of (1+3x^2)/(1-x-9x^5).at n=18A098525
• Antidiagonal sums of square array A100324, which lists the self-convolutions of SHIFT(A003169).at n=7A100325
• Number of 4-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero with no three beads in a row equal.at n=28A208946
• Primes p such that q = 2*p^3-1 and 2*p*q^2-1 are both prime.at n=10A224614
• Number of compositions of n such that the maximal distance between two identical parts equals four.at n=17A262197
• Number of compositions (ordered partitions) of n into hexagonal pyramidal numbers (A002412).at n=49A322854
• Primes k such that the concatenation of (b, k, b) and (k, b, k) are both prime, where b is the binary representation of k.at n=12A389801
• Prime numbersat n=3657