202501
domain: N
Appears in sequences
- Strong pseudoprimes to base 77.at n=33A020303
- Numerators of continued fraction convergents to sqrt(38).at n=5A041062
- Numerators of continued fraction convergents to sqrt(152).at n=5A041278
- Numerators of continued fraction convergents to sqrt(342).at n=5A041646
- Numerators of continued fraction convergents to sqrt(950).at n=15A042838
- x-values in the solution to x^2-38*y^2=1.at n=3A174750
- a(n) = 4*n^4 + 1.at n=14A211412
- Numbers k such that distances from k to three nearest squares are three perfect squares.at n=23A234335
- Smallest base b such that there exist exactly n Wieferich pseudoprimes (composites c satisfying b^(c-1) == 1 (mod c^2)) less than b.at n=22A255885
- Löschian numbers (A003136) of the form k^2+1.at n=34A271184
- Numbers k such that sigma((k-1)/2) + tau((k-1)/2) is prime.at n=8A272060
- a(n) = 32*n^3 + 48*n^2 + 18*n + 1.at n=18A322830