235298

Appears in sequences

• Numbers that are the sum of 2 nonzero 6th powers.at n=27A003358
• Numbers that are the sum of at most 2 nonzero 6th powers.at n=35A004853
• Triangle of numbers in which i-th row is {2^(i-j)*7^j, 0<=j<=i}; i >= 0.at n=34A036565
• If n = (p_1)^(m_1)...(p_k)^(m_k) then a(n) = (p_1)^((p_1)^(m_1) - 1)...(p_k)((p_k)^(m_k) - 1).at n=13A036879
• Numbers k such that the number of divisors of k and sum of 4th powers of divisors of k are relatively prime.at n=37A046681
• Sums of two powers of 7.at n=27A055258
• Numbers n such that n | 3^n + 2^n + 1^n.at n=33A056645
• Numbers n such that n | 7^n + 6^n + 5^n + 4^n.at n=31A057244
• Numbers n such that n | 5^n + 4^n + 1.at n=37A057302
• Numbers n such that the squarefree kernel of n is equal to the number of divisors of n.at n=26A070226
• Bhaskara twins: n such that 2*n^2 = X^3 and 2*n^3 = Y^2.at n=6A106318
• Values a of a Bhaskara pair (a,b), a<=b, sorted by value of b. A Bhaskara pair (a,b) is such that a^2 + b^2 = X^3 and a^3 + b^3 = Y^2.at n=8A106319
• Values b of a Bhaskara pair (a,b), a<=b, sorted on values of b. A Bhaskara pair (a,b) is such that a^2 + b^2 = X^3 and a^3 + b^3 = Y^2.at n=8A106320
• a(n) = 2*7^(n-1).at n=6A109808
• Even refactorable numbers k such that the number r of odd divisors and the number s of even divisors are both odd divisors of k and k is the first number for which the triple (r,s,t) occurs, where t is the number of divisors of k.at n=13A120358
• a(n) = 7*a(n-2), a(0) = 1, a(1) = 2.at n=13A123752
• Numbers k such that previous_prime(k)=k-sd and next_prime(k)=k+sd where sd is sum of the distinct prime factors of k.at n=16A125841
• a(n) = numerator of Product_{k=1..n} (1 + {n/k}), where {x} is the fractional part of x, {x} = x - floor(x).at n=13A128778
• Expansion of 2*(1 -4*x +14*x^2 +4*x^3 +9*x^4)/(1-x)^5.at n=19A173785
• a(n) = floor(1/{(2+n^4)^(1/4)}), where {} = fractional part.at n=49A184537