99992

Appears in sequences

• a(n) is the largest number which can be formed with no zeros, using least number of digits and having digit sum = n.at n=37A061219
• {Concatenation of n-1 and n+1}/n where n is a member of A069871.at n=8A077192
• Suppose you take the ten digits 0..9, arrange them in any order and then either concatenate adjacent ones or separate them with a plus or minus sign, e.g., 98-76+5-4-32+10 or 9-8-765+3041-2. The first expression totals to "1", the second example totals to "2275". This sequence lists the positive integers that cannot be expressed in this way.at n=11A108224
• a(n) is the least positive integer in base 10 containing n nines that is divisible by n.at n=3A112909
• Numbers k such that k concatenated with itself gives the product of two numbers which differ by 9.at n=11A116162
• Numbers k such that k * (k+9) is the concatenation of a number m with itself.at n=11A116293
• a(n) is the largest 5-digit number with exactly n divisors, or a(n) = 0 if no such number exists.at n=15A182698
• Fourth Lie-Betti number of a path graph on n vertices.at n=35A362007
• Number of successive occurrences of the same first digits in A366585.at n=40A366610