30853

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has period 85.at n=25A020424
• Successive powers of the matrix A=[1,2;3,4] written by rows in groups of 4.at n=24A100638
• a(n) = 5*a(n-1) + 2*a(n-2), n > 1; a(0) = a(1) = 1.at n=7A124610
• The smaller member prime(i) of an emirp pair (prime(i),prime(j)), such that the digit sum of i equals the digit sum of j.at n=18A178613
• Sum of parts of the n-th subsection of the head of the last section of the set of partitions of any odd integer >= 2n+1.at n=16A182995
• Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order.at n=12A222629
• Least prime p such that p*6^n +/- 1 are primes.at n=46A225057
• Numbers k such that 2k + 1 divides 2^k + k^2.at n=3A327636
• Primes having only {0, 3, 5, 8} as digits.at n=24A386063
• Numbers k such that (47^k + 3^k)/50 is prime.at n=2A390751
• Prime numbersat n=3327