19226

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has period 87.at n=9A020426
• Number of spiro bicyclic skeletons with n carbon atoms (see Parks et al. for precise definition).at n=10A121160
• Semiprimes that are the sum of 10 consecutive primes.at n=27A185347
• Numbers n such that n^8 + 1 and (n + 2)^8 + 1 are both prime.at n=40A217972
• Number of partitions p of n such that mean(p) >= multiplicity(min(p)).at n=40A240079
• Number of partitions p of n such that the number of parts is a part or max(p) - min(p) is a part.at n=43A241386
• Number of length n+5 0..1 arrays with no three disjoint pairs in any consecutive six terms having the same sum.at n=16A248441