25495
domain: N
Appears in sequences
- Denominators of continued fraction convergents to sqrt(463).at n=12A041883
- Numbers n such that 85*2^n-1 is prime.at n=14A050568
- a(n) = a(n-1) + a(n - 1 minus the number of terms of a(k) == (mod 4) so far).at n=36A060731
- A Wallis pair (x,y) satisfies sigma(x^2) = sigma(y^2); sequence gives y's for indecomposable Wallis pairs with x < y (ordered by values of x).at n=34A075769
- Expansion of x/((1 - x - x^4)*(1 - x)^6).at n=13A145135
- Number of length n+5 0..6 arrays with some three disjoint pairs in each consecutive six terms having the same sum.at n=3A248487
- T(n,k)=Number of length n+5 0..k arrays with some three disjoint pairs in each consecutive six terms having the same sum.at n=39A248489
- Number of length 4+5 0..n arrays with some three disjoint pairs in each consecutive six terms having the same sum.at n=5A248493
- Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic residues mod p that are < p/2.at n=30A282721