538002

Appears in sequences

• Sums of two distinct powers of 9.at n=19A038487
• Sums of two powers of 9.at n=25A055260
• a(n) = n^4*Product_{distinct primes p dividing n} (1+1/p^4).at n=26A065960
• Integers m such that there exist one prime p and one positive integer k, for which the expression k^3 + k^2*p is a perfect cube m^3.at n=35A338610
• a(n) = n^4 * Sum_{d^2|n} 1 / d^4.at n=26A351602