25741

Properties

Appears in sequences

• Primes that are palindromic in base 11.at n=32A029978
• Primes p whose period of reciprocal equals (p-1)/11.at n=10A056216
• Numbers p from A001125 such that 2*p-3 is prime.at n=32A063939
• Prime numbers occurring at integer Pythagorean distance (radius) from 1 in Ulam square prime-spiral. Primes on axes are excluded.at n=37A078765
• Numbers n such that the number formed by the digits of 2n sorted in ascending order is equal to the sum of the divisors of n after the digits of each divisor have been sorted in ascending order.at n=7A083387
• Primes in A003154.at n=32A083577
• Duplicate of A056216.at n=10A098678
• Pentanacci analog of A055502.at n=15A113884
• Primes p such that continued fraction of (1 + sqrt(p))/2 has period 7: primes in A146332.at n=37A146352
• Integers k such that A166100(k)/A005408(k) is not an integer.at n=35A166101
• Keith sequence for the number 197.at n=15A186830
• Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 6,6,1,0,0,0,1 for x=0,1,2,3,4,5,6.at n=5A197787
• Largest number of the form C(n,x) + C(n,y) + C(n,z) where x + y + z = n.at n=16A209083
• Fundamental discriminants d uniquely characterizing all complex biquadratic fields Q(sqrt(-3),sqrt(d)) which have 3-class group of type (3,3) and second 3-class group isomorphic to SmallGroup(729,37).at n=14A250240
• Expansion of Product_{k>=1} (1 + x^k + x^(3*k)) / (1 - x^k).at n=23A266647
• L.g.f.: Sum_{n=-oo..+oo} (x - x^(2*n-1))^(2*n-1) / (2*n-1).at n=52A293129
• O.g.f. A(x) satisfies: [x^n] exp( n*(n+1)^2 * x ) / A(x)^((n+1)^2) = 0 for n>0.at n=4A337579
• A sequence of integers from an additive problem with prime numbers.at n=27A348472
• Primes p such that if q is the next prime, p+A004086(q) and q+A004086(p) are prime.at n=28A351728
• E.g.f. A(x) satisfies A(x) = exp(x*B(x*A(x)^2)), where B(x) = 1 + x*B(x)^3 is the g.f. of A001764.at n=5A382030