412084

Appears in sequences

• Number of permutations avoiding the patterns {2413,2431,4213,3412,3421,4231,4321,4312}; number of strong sorting class based on 2413.at n=15A111281
• Number of self-inverse permutations p on [n] with displacement of elements restricted by 4: |p(i)-i| <= 4.at n=16A239076
• G.f. A(x) satisfies A(x) = 1 + x * A(x/(1 - x)^5) / (1 - x).at n=8A351815