54959

Properties

Appears in sequences

• Primes p such that 2*p+1 and ((2*p+1)^2 + 1)/2 = p^2 + (p+1)^2 are primes.at n=50A098717
• Primes of the form 8*k-1 such that 4*k-1 and 16*k-1 are also primes.at n=39A101792
• Primes of the form 8*k-1 such that 4*k-1, 16*k-1 and 32*k-1 are also primes.at n=6A101796
• Number of permutations of length n which avoid the patterns 1342, 2314, 4213.at n=10A116741
• a(n) = (n^6 - 126*n^5 + 6217*n^4 - 153066*n^3 + 1987786*n^2 - 13055316*n + 34747236)/36.at n=27A121888
• Primes of the form abs(1/(36)(n^6 - 126n^5 + 6217n^4 - 153066n^3 + 1987786n^2 - 13055316n + 34747236)) in order of increasing nonnegative n.at n=27A272555
• Primes p such that p^7 - 1 has 8 divisors.at n=35A341669
• Triangle read by rows: T(n, k) = Sum_{i=0..k-2} (-1)^(i+2) * (k-i-1)^n * binomial(k,i).at n=38A366159
• Primes having only {4, 5, 9} as digits.at n=24A385793
• Primes having only {4, 5, 8, 9} as digits.at n=39A386192
• Prime numbersat n=5587