31769

Properties

Appears in sequences

• Numbers k such that 7*2^k + 5 is prime.at n=23A058595
• Sum of numerators and denominators of convergents to e.at n=11A085368
• Smallest member of a pair of consecutive twin prime pairs that have three primes between them.at n=36A089635
• Primes of the form 22*(n^2)+1.at n=19A117049
• a(n) = 22*n^2 + 1.at n=38A158537
• Primes that become squares when prefixed with a 1.at n=4A167734
• Number of partitions p of n such that median(p) > multiplicity(min(p)).at n=45A240215
• Numbers n such that n!!! - 3^4 is prime.at n=44A247464
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 131", based on the 5-celled von Neumann neighborhood.at n=36A270223
• Expansion of 1/(1 - 1^1*x/(1 - 2^2*x/(1 - 3^3*x/(1 - 4^4*x/(1 - 5^5*x/(1 - ...)))))), a continued fraction.at n=4A307084
• Total number of divisors d of m (counted with multiplicity), such that the prime signature of d is a partition of n and m runs through the set of least numbers whose prime signature is a partition of 2n.at n=7A309915
• Total number of divisors d of m (counted with multiplicity), such that the prime signature of d is a partition of seven and m runs through the set of least numbers whose prime signature is a partition of n.at n=7A309922
• Number of partitions of the n-th triangular number into exactly n positive triangular numbers.at n=22A338585
• Lesser of twin happy primes.at n=4A387240
• Prime numbersat n=3416