10987654321
domain: N
Appears in sequences
- Concatenation of numbers from n down to 1.at n=9A000422
- Number of zeros in numbers 1 to 111...1 (n+1 digits).at n=9A014925
- Append n to the previous term, reverse alternate terms.at n=9A053052
- Add (n mod 10)*10^(n-1) to the previous term, with a(0) = 0.at n=11A057138
- a(n) = Sum_{m=0..n} m*n^(m-1).at n=10A068475
- Reverse concatenation of first n positive integers modulo forward concatenation of first n positive integers.at n=9A095249
- a(n) = 1 + 2*n + 3*n^2 + 4*n^3 + 5*n^4 + 6*n^5 + 7*n^6 + 8*n^7 + 9*n^8 + 10*n^9.at n=10A113632