5217031

Properties

Appears in sequences

• a(n) = 10^n - 9^n.at n=7A016189
• Nexus numbers (n + 1)^7 - n^7.at n=9A022523
• Primes that are the difference between two powers: y^z - x^z = prime.at n=44A078668
• Nexus primes of order 7 or primes of form n^7 - (n-1)^7 = A022523(n-1).at n=5A121618
• Primes of the form 10^k-9^k.at n=2A199819
• Triangle read by rows. T(n, k) = 1 if n = k, otherwise T(n, k) = Sum_{j=0..k-1} (-1)^(j - k - 1) * (n + j + 1)^(n-1) / (j! * (k - 1 - j)!).at n=38A360177
• Prime numbersat n=362528