3173828125
domain: N
Appears in sequences
- Smallest k such that circle x^2 + y^2 = k passes through exactly 4n integer points.at n=25A018782
- a(n) = Sum_{k=0..n} (k+1) * T(n,k), with T given by A026374.at n=24A026950
- a(n) = n*5^(n-1).at n=13A053464
- a(n) = (2*n+1)*25^n.at n=6A166725
- a(n) = n^6*(n + 1)/2.at n=25A168526
- Let n = p_1*p_2*...*p_k be the prime factorization of n, with the primes sorted in descending order. Then a(n) = 5^(p_1 - 1)*13^(p_2 - 1)*17^(p_3 - 1)*...*A002144(k)^(p_k - 1).at n=25A340388