87654321
domain: N
Appears in sequences
- Concatenation of numbers from n down to 1.at n=7A000422
- Number of zeros in numbers 1 to 111...1 (n+1 digits).at n=7A014925
- Append n to the previous term, reverse alternate terms.at n=7A053052
- Add (n mod 10)*10^(n-1) to the previous term, with a(0) = 0.at n=8A057138
- String together the first n numbers in an order which maximizes the result.at n=7A060554
- Smallest multiple of n beginning with the backward concatenation of numbers from (n-1) to 1.at n=8A080454
- Concatenation of digits of natural numbers from n down to 1.at n=7A104759
- a(n) = 1 + 2*n + 3*n^2 + 4*n^3 + 5*n^4 + 6*n^5 + 7*n^6 + 8*n^7.at n=10A113618
- Factorial codes for the fixed points of the square of Vaillé's 1997 bijection on Dyck paths.at n=23A126299
- a(n) = concatenation of reversed digits of natural numbers from n down to 1.at n=7A138793
- Reverse (palindrome) of A164844.at n=52A168647