28319

Properties

Appears in sequences

• Numerators of b(n) = (1/16^n)*(4/(8*n+1) - 2/(8*n+4) - 1/(8*n+5) - 1/(8*n+6)).at n=37A048581
• a(n) = ceiling(binomial(n,6)/n).at n=31A053643
• Primes p such that (p-1)/2 and (p-3)/4 are also prime.at n=35A066179
• Primes of the form 16*k-1 such that 4*k-1 and 8*k-1 are also primes.at n=18A101793
• Primes of the form 32*k-1 such that 4*k-1, 8*k-1 and 16*k-1 are also primes.at n=3A101798
• Numerator of Sum_{k=1..n} (-1)^(k+1)/k!.at n=10A103816
• Primes p such that q-p = 30, where q is the next prime after p.at n=35A124596
• Triple-safe primes p: p, (p-1)/2, (p-3)/4, and (p-7)/8 are all prime.at n=9A157358
• Primes p such that 3*p+4, 5*p+6 and 7*p+8 are also prime.at n=27A173879
• Primes of the form 2n^2 - 3.at n=29A201712
• Primes p=prime(i) of level (1,4), i.e., such that A118534(i) = prime(i-4).at n=10A216177
• Number of partitions of 2n such that (sum of parts having multiplicity 1) = sum of all other parts.at n=30A240447
• Primes p such that (p-k)/(k+1) is also prime for k = 1, 2, 3.at n=6A247347
• Primes p whose last digit is the same as that of both its predecessor prime and its successor prime.at n=28A298075
• Number of parts in all partitions of n with largest multiplicity six.at n=32A320376
• Primes p such that (p^128 + 1)/2 is prime.at n=20A341230
• Numbers m such that Conv(b,m) = b has a unique nontrivial solution (b = 0 and b = 1 are considered trivial solutions). Here, Conv(b,m) denotes the limit of b^^t (mod m) as t goes to infinity.at n=22A347561
• Smallest prime number such that the number of distinct prime factors with multiplicity of its 9's complement is equal to n. If no such number exists, return -1.at n=12A378139
• Prime numbersat n=3085