244140626

Appears in sequences

• a(n) = sigma_12(n), the sum of the 12th powers of the divisors of n.at n=4A013960
• Numerator of sum of -12th powers of divisors of n.at n=4A017687
• a(n) = 5^n + 1.at n=12A034474
• Sum of sixth powers of unitary divisors.at n=24A034680
• Numbers whose cube is palindromic in base 5.at n=13A046233
• Numbers of the form (5^{mr}-1)/(5^r-1) for positive integers m, r.at n=30A076284
• a(n) = 4*a(n-1) + 5*a(n-2) for n > 1, with a(0) = 2 and a(1) = 4.at n=12A087404
• a(n) = smallest number that leads to a new cycle under the base-5 Kaprekar map of A165032.at n=13A165048
• a(n) = Sum_{d|n} d^(2*n+2).at n=4A294955
• Square array A(n,k), n >= 1, k >= 0, read by antidiagonals, where A(n,k) is Sum_{d|n} d^(k*(d-1)).at n=32A308701
• a(n) = Sum_{d|n} (-1)^(d-1)*d^12.at n=4A321551
• a(n) = Sum_{d|n} (-1)^(n/d+1)*d^12.at n=4A321557
• a(n) = Sum_{d divides n} (-1)^(d + n/d) * d^12.at n=4A321809
• Sum of 12th powers of odd divisors of n.at n=4A321816
• Sum of 12th powers of odd divisors of n.at n=9A321816
• Sum of 12th powers of odd divisors of n.at n=19A321816
• a(n) = Sum_{d|n, n/d odd} d^12 for n > 0.at n=4A321820
• a(n) = Sum_{d|n, d==1 mod 4} d^12 - Sum_{d|n, d==3 mod 4} d^12.at n=4A321828
• a(n) = Sum_{d|n, d==1 mod 4} d^12 - Sum_{d|n, d==3 mod 4} d^12.at n=9A321828
• a(n) = Sum_{d|n, d==1 mod 4} d^12 - Sum_{d|n, d==3 mod 4} d^12.at n=19A321828