368639

Appears in sequences

• Positions of non-crossing fixed-point-free involutions encoded by A014486 (after reflection) in A055089. Permutation of A064640.at n=27A064639
• Positions of non-crossing fixed-point-free involutions (encoded by A014486) in A055089, sorted to ascending order.at n=27A064640
• Number of 2-input gates used to synthesize parity function in disjunctive normal form (DNF) with n inputs.at n=14A074494
• Smallest initial value k that reaches 1 in n steps when iterating the map m -> rad(m)-1, where rad(m) is the squarefree kernel of m (A007947).at n=30A075426