99090
domain: N
Appears in sequences
- Numbers whose set of base 10 digits is {0,9}.at n=26A097256
- Smallest number k such that k*n +/- 1, k*n^2 +/- 1, and k*n^3 +/- 1 are three sets of twin primes. a(n) = 0 if no such number exists.at n=12A239021
- Subsequence of lesser of 2 terms of A095301 that are 2 apart.at n=33A248083
- The poor sandwiches sequence (see Comments lines for definition).at n=40A335600