221747

Properties

Appears in sequences

• Sixth term of weak prime septet: p(m-4)-p(m-5) < p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m).at n=10A054839
• Number of self-inverse permutations p on [n] where the maximal displacement of an element equals 7.at n=14A238918
• Prime numbersat n=19759