52783

Properties

Appears in sequences

• Numbers k such that 57*2^k + 1 is prime.at n=31A002274
• Primes from merging of 5 successive digits in decimal expansion of exp(Pi).at n=5A105010
• Denominator of next-best approximation to harmonic numbers. a(n) = Denominator of (A055573(n)-1)th convergent of n-th harmonic number, Sum_{k=1..n} 1/k.at n=12A113124
• a(0) = a(1) = 1; for n >= 2, a(n) = a(n-1) + a(n-2) - (n-1) if that number is positive and not already in the sequence, otherwise a(n) = a(n-1) + a(n-2) + (n-1).at n=25A117822
• Number of different hook length multisets of partitions of n.at n=46A180652
• Odd numbers m such that for all 2^k < m the numbers m + 2^k, m - 2^k, m*2^k + 1, and m*2^k - 1 are composite, with k >= 1.at n=7A256163
• Primes p such that for all 2^k < p the numbers p + 2^k, p - 2^k, p*2^k + 1, and p*2^k - 1 are composite.at n=4A256237
• Consecutive states of the linear congruential pseudo-random number generator 237*s mod (2^16+1) when started at s=1.at n=11A385080
• Prime numbersat n=5388