48100

Appears in sequences

• Square roots of sums of squares of divisors in A046655.at n=17A046656
• Square roots of sums of squares of divisors in A046655.at n=18A046656
• Numbers k such that 271*2^k + 1 is prime.at n=4A053352
• The common value of sigma_2 for square-amicable numbers, sigma_2(m)=sigma_2(n), m<n.at n=16A110929
• The common value of sigma_2 for square-amicable numbers, sigma_2(m)=sigma_2(n), m<n.at n=17A110929
• The common value of sigma_2 for square-amicable numbers, sigma_2(m)=sigma_2(n), m<n.at n=18A110929
• Consider the base-3 Kaprekar map n->K(n) defined in A164993. Sequence gives numbers belonging to cycles, including fixed points.at n=19A164998
• Consider the base-3 Kaprekar map n->K(n) defined in A164993. Sequence gives numbers belonging to cycles of length greater than 1.at n=14A165000
• Number of (w,x,y,z) with all terms in {1,...,n} and w<=2x and y>=3z.at n=25A212515
• Integers k such that k^2 can be written as the sum of three positive fourth powers.at n=11A365657
• Sum of squares of divisors of the numbers m such that m and m+2 have the same sum of squares of divisors.at n=1A372114
• G.f. A(x) satisfies A(x) = C(x) / (1 - x*A(x)^3), where C(x) is the g.f. of A000108.at n=6A381827