31573

Properties

Appears in sequences

• Pisot sequence L(5,8).at n=16A020736
• Denominators of continued fraction convergents to sqrt(998).at n=10A042933
• Expansion of (2-x-x^2-x^3)/((1-x)*(1-x^2-x^3)).at n=40A052954
• Expansion of (1-x)^(-1)/(1-x^2+x^3).at n=42A077883
• Primes arising in A090266.at n=36A090267
• Primes arising as A093929(n)*A093929(n+1)+2.at n=27A093930
• Indices of primes in sequence defined by A(0) = 83, A(n) = 10*A(n-1) + 33 for n > 0.at n=21A101074
• Primes of the form 256 k + 85.at n=27A127593
• Primes whose binary and ternary representations are also prime when read in decimal.at n=34A236537
• Numbers k such that (91*10^k + 17)/9 is prime.at n=20A289050
• Numbers k such that the coefficient of x^k in the expansion of Product_{j>=1} (1 - x^j)^5 is zero.at n=35A302057
• a(n) is the least k such that the continued fraction for sqrt(k) has period prime(n).at n=46A350545
• Expansion of g.f. Sum_{n>=1} q^n/(1-q^(2*n)-q^(3*n)).at n=40A368689
• Prime numbersat n=3398