260253

Appears in sequences

• Numbers k that divide the (right) concatenation of all numbers <= k written in base 9 (most significant digit on left).at n=36A029454
• Odd numbers divisible by exactly 9 primes (counted with multiplicity).at n=30A046322
• Numbers k such that 9*10^k - 1 is prime.at n=17A056725
• Monotonic ordering of nonnegative differences 6^i-3^j, for 40>= i>=0, j>=0.at n=40A192152
• Expansion of e.g.f. exp( x * (exp(3 * x) - 1) ).at n=7A351737
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = n! * Sum_{j=0..floor(n/2)} k^(n-j) * Stirling2(n-j,j)/(n-j)!.at n=62A362839