1265625

Appears in sequences

• Discriminant of n-th cyclotomic polynomial.at n=14A004124
• Numbers of form 5^i*9^j, with i, j >= 0.at n=35A025624
• a(n) = 3^n * 5^binomial(n,2).at n=4A099168
• Maximum number of spanning trees in a cubic graph on 2n vertices.at n=7A108941
• Numbers with 35 divisors.at n=7A175745
• Numbers with prime factorization p^4*q^6.at n=7A190464
• Squares of the form x^3 + 2*y^3, with x, y > 0.at n=13A219728
• Numbers that are equal to the arithmetic derivative of their cototient.at n=12A248817
• Number of set partitions of [n] such that i-j is a multiple of six for all i,j belonging to the same block.at n=22A275073
• Largest square dividing prime factorization representation of the n-th Stern polynomial: a(n) = A008833(A260443(n)).at n=43A283989
• Numbers k such that A071187(k) <> A329614(k).at n=40A329613
• Discriminant of the (2n)-th cyclotomic field Q(zeta_(2n)). Equivalently, discriminant of the (2n)-th cyclotomic polynomial.at n=14A344407
• Number of dominating sets in the n-alkane graph.at n=7A347501
• Squares of powerful numbers that are not prime powers.at n=29A378768
• Perfect powers of Achilles numbers.at n=15A383394
• Numbers k = p_i^e_i * p_j^e_j such that i/e_i + j/e_j = 1 for e_i, e_j >= 1, p_i, p_j distinct prime numbers.at n=7A387978
• Numbers k = p_i^e_i *...* p_r^e_r such that i/e_i +...+ r/e_r = 1 for e_i,..., e_r >= 1; p_i,..., p_r distinct prime numbers (A000040).at n=12A388006
• Powers k^m, m > 1, where k is an Achilles number such that A053669(k) < A006530(k).at n=6A389341
• Powers k^m, m > 1, where k is an Achilles number that is not a product of primorials.at n=10A389814
• Squares of Achilles numbers.at n=13A390435