204856

Appears in sequences

• a(n) = T(n,n-4), T given by A026536. Also a(n) = number of integer strings s(0), ..., s(n), counted by T, such that s(n) = 4.at n=13A026541
• Least k such that decimal representation of k*n contains only digits 0 and 8.at n=42A096687
• Numbers in base 10 that are palindromic in bases 6 and 7.at n=14A097931
• a(n) = [2^n/(1 - cos(1/n))] - [2^n/(-1 + cot(1/n))], where [ ] = floor.at n=9A332432