49375

Appears in sequences

• Composites which use less than all of their digits in their prime factorization.at n=13A074211
• Main diagonal of polygonal lucky array defined in A128511.at n=15A128947
• Terms of A177763 which have more than one such representation.at n=33A177766
• First number beginning the smallest chain of n consecutive odd divisors, with no even divisor between, of some factorial s!.at n=7A218493
• Integers, a, which are the solutions to the equation a^2 + b^3 = c^4, with integers a, b > 0, and indexed off of A242183.at n=40A242184
• Numbers k such that 9*R_(k+2) - 10^k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=17A257041
• Number of compositions (ordered partitions) of n into centered pentagonal numbers (A005891).at n=45A322801
• Maximal determinant of an n X n symmetric Toeplitz matrix using the integers 1 to n.at n=6A350954
• Odd numbers m such that there exists no k for which the denominator of d(k)/k = m where d(k) is the number of divisors of k (A000005).at n=37A353320