538084

Appears in sequences

• sigma_4(n): sum of 4th powers of divisors of n.at n=26A001159
• Numerator of sum of -4th powers of divisors of n.at n=26A017671
• Base-9 digits are, in order, the first n terms of the periodic sequence with initial period 1,0.at n=6A033119
• Sums of 4 distinct powers of 9.at n=20A038489
• Numbers whose base-9 representation has exactly 7 runs.at n=0A043636
• Sum of 4th powers of odd divisors of n.at n=26A051001
• a(n) = n^6 + n^4 + n^2 + 1.at n=9A059830
• A level 11 weight 5 form.at n=26A065103
• Numbers of the form (3^{mr}-1)/(3^r-1) for positive integers m, r.at n=32A076270
• Numbers of the form (9^{mr}-1)/(9^r-1) for positive integers m, r.at n=13A076288
• a(n) = direuler(p=2,n,1/(1-X)/(1-p*n*X))[n].at n=26A089745
• a(n) = floor((n+3)^(n+2)/((n+3)^2-1)).at n=6A089816
• Modulo 2 binomial transform of 3^n.at n=12A100307
• Expansion of 1/((1-x)*(1-81*x)).at n=3A239670
• a(n) = Sum_{ d >= 1, d divides n} (-1)^(n-d)*d^4.at n=26A279395
• a(n) = Sum_{d|n} (-1)^(n/d+1)*d^4.at n=26A284900
• a(0) = 0, a(n) = Sum_{0<d|n, n/d odd} d^4 for n > 0.at n=27A285989
• a(n) = Sum_{d divides n} (-1)^(d + n/d) * d^4.at n=26A321560
• Sum of the 4th powers of the odd proper divisors of n.at n=53A352032