1334161

Appears in sequences

• Numbers that are n-gons for three or more n's, where n=3,4,5,...,16.at n=16A062712
• Consider the first run of composites that contains at least two numbers whose largest prime factor is prime(n), n >= 2. a(n) is the first of these numbers.at n=18A137799
• Triangular numbers which are sums of 5 consecutive primes.at n=29A173421
• Each term of A003215 (centered hexagonal numbers) is multiplied by the corresponding term of A003154 (centered dodecagonal numbers).at n=16A338795
• a(n) is the least positive number k that can be written in exactly k ways as (x*y+1)*(x*z+1) with x > y > z > 1.at n=12A345215