242757

Appears in sequences

• Numbers m such that m divides 10^m - 1.at n=30A014950
• Odd numbers divisible by exactly 9 primes (counted with multiplicity).at n=26A046322
• Sum of 2nd, 4th, 6th, 8th and 10th powers of divisors are divisible by sum of divisors.at n=15A074471
• Numbers k that divide the smallest number whose sum of digits is k.at n=33A342810
• Square array T(n,k), n>=0, k>=0, read by antidiagonals downwards, where column k is the expansion of 1/(1 - 9*x*(1 + x)^k)^(1/3).at n=51A361839
• Expansion of 1/(1 - 9*x*(1+x)^3)^(1/3).at n=6A361842
• Square array T(n,k) read by ascending antidiagonals: T(n,k) = (p - 1)/2*(2*(n - 1)*p^(n - 1) - (2*n - 3)*p^(n - 2)), n>=2, where p is the k-th odd prime.at n=36A391520