353683

Appears in sequences

• a(n) is the number k, 2^n < k < 2^(n+1), such that k/c(k) is a minimum in the interval, where c(k) is Hofstadter-Conway sequence A004001.at n=17A051284
• (1/2)*(n^2+n+2)*(n^2+3*n+1).at n=28A058310
• Numbers with three distinct prime factors (each of which may or may not be repeated) which when concatenated in any order form a prime number.at n=18A181559