59778

Appears in sequences

• Sums of distinct powers of 9.at n=40A033046
• Positive numbers having the same set of digits in base 2 and base 9.at n=35A037414
• Sums of two distinct powers of 9.at n=13A038487
• Sums of two powers of 9.at n=18A055260
• a(n) = 18*(n - 2)*(2*n - 5).at n=41A060787
• Numbers n such that n*((2^61-1)^3) - 1 and n*((2^61-1)^3) + 1 are twin primes.at n=5A099230
• a(n) = n^5 + n^3.at n=9A155977
• Numbers of the form 3^j + 9^k, for j and k >= 0.at n=46A226827
• a(n) = 3*n^3 + n^2.at n=27A294315
• Numbers k that have at least two different representations as the product of a number and of its decimal digits.at n=23A336944
• a(n) = 3^(n*(n-1)/2) + 3^(n*(n+1)/2) for n > 0, with a(0) = 1.at n=4A337969
• Dirichlet g.f.: Product_{k>=2} 1 / (1 - k^(-s))^(9^(k-1)).at n=5A344253
• Dirichlet g.f.: Product_{k>=2} (1 + k^(-s))^(9^(k-1)).at n=5A344298
• Distinct terms in A386369.at n=14A385254