80000000000
domain: N
Appears in sequences
- a(n) = (9*10^n + (-10)^n)/10.at n=11A083227
- Numbers with no "e" in Dutch.at n=12A114644
- Numbers with no "e" in Dutch (Miljard without "een").at n=13A115072
- Complete list of all 9 numbers n such that n is equal to the number of 9's in the decimal digits of all numbers <= n.at n=8A130431
- Numbers n such that the sum of all numbers formed by deleting one digit from n is equal to n.at n=39A131639
- Numbers k such that k and k^2 use only the digits 0, 4, 5, 6 and 8.at n=29A136949
- Digits of n' end in n, where n' is the arithmetic derivative of n.at n=18A249540
- 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=31A281067
- Expansion of (1-2*x)/(1-10*x).at n=11A346178
- Indices of records in A367601.at n=6A367603