90000000001
domain: N
Appears in sequences
- First n-digit number that occurs in the sequence A085951.at n=10A085952
- Numbers k such that the sum of all proper substrings of their decimal representation equals the reverse of k.at n=20A162467
- a(1) = 1; a(n) is the smallest natural number such that a(n) > a(n-1), and the name of a(n) in English starts with the letter a(n-1) ends with, and a(n) makes the sequence extendable.at n=33A281067