2528253
domain: N
Appears in sequences
- If m = p_i^e_i, n=Product p_j^f_j, set G_m(n) = Product p_{j+i}^{f_j*e_i}; extend G_m to all m by multiplicativity; sequence gives a(n)=G_n(n).at n=19A045974
- Smallest number having n divisors ending with 1 or 9.at n=24A085645
- Number of subsets of the set {1,2,...,n} which do not contain two elements whose difference is 5.at n=29A208742
- Smallest number having exactly n divisors ending with 3 or 7.at n=24A331082