4782970

Appears in sequences

• a(n) = sigma_14(n), the sum of the 14th powers of the divisors of n.at n=2A013962
• Numerator of sum of -14th powers of divisors of n.at n=2A017691
• a(n) = 3^n + 1.at n=14A034472
• Sum of seventh powers of unitary divisors.at n=8A034681
• Sums of two distinct powers of 9.at n=21A038487
• Numbers whose cube is palindromic in base 9.at n=13A046241
• Expansion of g.f. (2-3*x-x^2)/((1-x^2)*(1-3*x)).at n=14A052929
• Sums of two powers of 9.at n=28A055260
• a(n) = 9^n + 1.at n=7A062396
• Numbers of the form (3^{mr}-1)/(3^r-1) for positive integers m, r.at n=38A076270
• Numbers of the form (9^{mr}-1)/(9^r-1) for positive integers m, r.at n=15A076288
• a(n) = 3^n + (-1)^n - [1/(n+1)], where [] represents the floor function.at n=14A084182
• Expansion of (1- 2*x - x^2)/((1-x)*(1-3*x)).at n=15A094388
• a(n) = 3^n + (-1)^n.at n=14A102345
• a(n) = 3^n + 1 - 0^n.at n=14A103457
• a(n) = 9^n + 1 - 0^n.at n=7A103460
• Pierpont 4-almost primes: numbers with exactly 4 prime divisors, not necessarily distinct, of the form 2^K*3^L + 1.at n=17A111344
• Sum of 7th powers of digits of n.at n=19A123253
• a(n) = smallest number that leads to a new cycle under the base-3 Kaprekar map of A164993.at n=28A165009
• a(n) = smallest number that leads to a new cycle under the base-9 Kaprekar map of A165110.at n=9A165127