387952660

Appears in sequences

• a(n) = sigma_6(n), the sum of the 6th powers of the divisors of n.at n=26A013954
• Numerator of sum of -6th powers of divisors of n.at n=26A017675
• Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,0.at n=9A033145
• a(n) = n^6 + n^4 + n^2 + 1.at n=27A059830
• a(n) = Sum_{ d divides n } (n/d)^(2d).at n=26A073705
• Numbers of the form (9^{mr}-1)/(9^r-1) for positive integers m, r.at n=22A076288
• a(n) = Sum_{d|n} (-1)^(n/d+1)*d^6.at n=26A284927
• a(n) = Sum_{d|n} (-1)^(d-1)*d^6.at n=26A321545
• Sum of 6th powers of odd divisors of n.at n=26A321810
• a(n) = Sum_{d|n, n/d odd} d^6 for n > 0.at n=26A321817