8857805
domain: N
Appears in sequences
- Numbers k that divide s(k), where s(1)=1, s(j)=5*s(j-1)+j.at n=21A014852
- Numbers n such that the n-th cyclotomic polynomial has a root mod 11.at n=26A245480
- a(n) is the smallest nonnegative integer k where exactly n ordered pairs of positive integers (x, y) exist such that x^2 + 3*x*y + y^2 = k.at n=7A374091
- Integers k such that k = Sum k/(p_i + j), where p_i are the prime factors of k (with multiplicity). Case j = -2.at n=8A380900