84375

Appears in sequences

• Integers of the form Product p_j^k_j = Product k_j^p_j; p_j in A000040.at n=14A008478
• Triangle of coefficients in expansion of (3+5x)^n.at n=25A013622
• Odd numbers k that divide phi(k)*sigma(k).at n=34A015706
• a(n) = 10^n - n^6.at n=5A024120
• 7-automorphic numbers ending in 5: final digits of 7n^2 agree with n.at n=4A030991
• Numbers whose prime factors are 3 and 5.at n=27A033849
• Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*3^j.at n=23A038245
• Odd numbers divisible by exactly 8 primes (counted with multiplicity).at n=29A046321
• Numbers k such that if k = Product p_i^e_i then p_i = e_i for all i.at n=6A048102
• Numbers k such that, in the prime factorization of k, the product of exponents equals the product of prime factors.at n=17A054412
• Number of polynomial functions from Z to Z/nZ.at n=15A058067
• Write n in decimal, omit 0's, raise each digit k to k-th power and multiply.at n=35A061510
• Numbers k such that Sum_i ( e(i)/p(i) ) is an integer, where the prime factorization of k is Product_i ( p(i)^e(i) ).at n=24A072873
• Hypotenuses for which there exist exactly 5 distinct Pythagorean triangles.at n=18A084649
• Numbers that have exactly eight prime factors counted with multiplicity (A046310) whose digit reversal is different and also has 8 prime factors (with multiplicity).at n=14A109028
• Numbers whose prime factors are raised to the powers of themselves.at n=2A113853
• Triangle, generated from (3^(n-k) * 5^k) table.at n=41A120027
• Numbers of the form Product_i b_i^e_i, where the b_i are all distinct values > 1 and the e_i are a permutation of the b_i.at n=27A122405
• Numbers of the form Product_i p_i^e_i, where the p_i are distinct primes and the e_i are a permutation of the p_i.at n=13A122406
• a(p_1^e_1*p_2^e_2*.....*p_m^e_m) = (p_1^p_1)^e_1*(p_2^p^2)^e_2*.....*(p_m^p_m)^e_m where p_1^e_1*p_2^e_2*.....*p_m^e_m is the prime decomposition of n.at n=14A133482