99990

Appears in sequences

• Denominators of approximations to e.at n=35A006259
• a(n) = n^5 - n.at n=10A061167
• The next smallest pair of numbers is taken so that a(2n-1)/a(2n) converges to e = exp(1).at n=51A065370
• Largest n-digit number with exactly n distinct prime divisors. There are no further terms.at n=4A070843
• Largest n-digit multiple of the n-th prime.at n=4A091801
• a(n) is the largest number such that all of a(n)'s length-n substrings are distinct and divisible by 99.at n=4A093299
• Numbers whose set of base 10 digits is {0,9}.at n=30A097256
• Denominators of "Farey fraction" approximations to e.at n=37A119015
• a(n) = 10*(10^n-1).at n=4A124167
• a(n) = (3/8)*(n-1)*(n-2)*(27*n^2-137*n+180).at n=11A134176
• Numbers k such that k and k^2 use only the digits 0, 1, 4, 8 and 9.at n=49A136867
• Numbers k such that k and k^2 use only the digits 0, 1, 5, 8 and 9.at n=33A136874
• Numbers k such that k and k^2 use only the digits 0, 1, 6, 8 and 9.at n=35A136879
• Numbers k such that k and k^2 use only the digits 0, 1, 7, 8 and 9.at n=35A136880
• Numbers k such that k and k^2 use only the digits 0, 1, 8 and 9.at n=33A136881
• a(n+2) = 100*a(n+1) - a(n), a(1)=0, a(2)=10.at n=3A154027
• a(n)=10^n-2*n.at n=5A173834
• Where A024573 becomes a record.at n=17A182219
• Number of 10-ary sequences with primitive period n.at n=5A218127
• Number of n-letter strings over a ten letter alphabet where no letter appears exactly five times.at n=5A272503