88889

Appears in sequences

• a(0)=1, a(n) = a(n-1) + 8*10^(n-1).at n=5A059482
• A subdiagonal of number array A083064.at n=5A083073
• Near-repdigit semiprimes with 8 as repeated digit.at n=12A105989
• Numbers k such that the concatenation of 8*k with k gives a square.at n=6A115551
• a(n) = n^5-n^4-n^3-n^2-n-1.at n=10A125083
• First differences of A007088.at n=31A138342
• For k in {2,3,...,9} define a sequence as follows: a(0)=0; for n>=0, a(n+1)=a(n)+1, unless a(n) ends in k, in which case a(n+1) is obtained by replacing the last digit of a(n) with the digit(s) of k^2. This is k(9).at n=45A237346
• Numbers which have only digits 8 and 9 in base 10.at n=31A256341
• Number of 4Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors not equal to itself.at n=21A265994
• Numbers whose smallest decimal digit is 8.at n=27A284069
• Expansion of (1 + 4*x - 6*x^2) / ((1 - x) * (1 - 10*x^2)).at n=10A328333
• Numbers with easy multiplication table - the first 9 multiples of these numbers can be derived by either incrementing or decrementing the corresponding digits from the previous multiple.at n=31A359925