43046722

Appears in sequences

• a(n) = sigma_16(n), the sum of the 16th powers of the divisors of n.at n=2A013964
• Numerator of sum of -16th powers of divisors of n.at n=2A017695
• Cyclotomic polynomials at x=3.at n=32A019321
• Cyclotomic polynomials at x=9.at n=16A019327
• Cyclotomic polynomials at x=-3.at n=32A020502
• Cyclotomic polynomials at x=-9.at n=16A020508
• a(n) = 3^n + 1.at n=16A034472
• Sum of eighth powers of unitary divisors.at n=8A034682
• Dirichlet convolution of b_n=1 with c_n=3^(n-1).at n=16A034730
• Sums of two distinct powers of 9.at n=28A038487
• Numbers whose cube is palindromic in base 9.at n=14A046241
• Expansion of g.f. (2-3*x-x^2)/((1-x^2)*(1-3*x)).at n=16A052929
• Sums of two powers of 9.at n=36A055260
• Generalized Fermat numbers: 3^(2^n)+1, n >= 0.at n=4A059919
• a(n) = n^8 + 1.at n=9A060890
• a(n) = n^16 + 1.at n=3A060895
• a(n) = 9^n + 1.at n=8A062396
• a(n) = 9^(2*n) + 1.at n=4A063270
• Numbers of the form (9^{mr}-1)/(9^r-1) for positive integers m, r.at n=17A076288
• a(n) = 3^n + (-1)^n - [1/(n+1)], where [] represents the floor function.at n=16A084182