88888888
domain: N
Appears in sequences
- Concatenate n n times.at n=7A000461
- a(n) = 8*(10^n - 1)/9.at n=8A002282
- Numbers with digits nondecreasing and their reciprocals sum to 1/(positive integer).at n=49A045910
- Replace each 1 in decimal expansion of n with 1 1's, each 2 with 2 2's, etc. (0 vanishes).at n=7A048376
- n times (n 1's): a(n) = n*(10^n - 1)/9.at n=8A053422
- a(n) is the smallest number such that the product of its decimal digits equals n^n, or 0 if no solutions exist.at n=7A068187
- Nonsquarefree numbers obtained by repeating a single digit.at n=27A077572
- Largest n-digit palindromic multiple of n with a digit sum that is also a multiple of n, or 0 if no such number exists. For n a multiple of 10 it is sufficient that a(n) be palindromic when trailing zeros are ignored.at n=7A084022
- Numbers with digits in nondecreasing order such that sum of the reciprocals of the digits is 1.at n=32A091783
- Nonprime numbers n concatenated n times.at n=3A102622
- Integers are written in the form abcd...n where "a" means: This integer contains "a" times the digit b; "b" means: This integer contains "b" times the digit c; "c" means: This integer contains "c" times the digit d; ... and "n" means nothing.at n=26A105959
- a(n) is the least positive integer containing n eights that is divisible by n.at n=7A112907
- a(n) is the largest base-10 string such that the n-th number coprime to 10 does not divide any substring of a(n).at n=2A114922
- Partial sums of A051109.at n=23A117727
- Repdigit Kaprekar numbers.at n=12A145875
- Numbers n such that LS(n) divides n, where LS is the "Look and Say" function (A045918).at n=16A152957
- a(10n+m) is the integer with n+m concatenations of the digit m in base 10, 0<=m<=9.at n=7A158849
- Squaded sum of digits of the number equals the product of digits of the (same) number.at n=2A164850
- The smallest number that has more copies of some digit than all previous terms of the sequence put together.at n=35A179310
- Largest k such that no sum of digits is divisible by n (zeros not allowed in the digits of k).at n=7A231155