987654323domain: NAppears in sequencesSmallest prime of the form: n successive positive integers in descending order followed by a 3. a(3k) = 0 as no such prime exists.at n=7A114759Right-angled primes.at n=10A167842Primes p of the form n + 987654321 where 987654321 is the largest zeroless pandigital number.at n=0A234812