51866

Appears in sequences

• Number of irreducible Boolean polynomials of degree n.at n=17A169912
• Number of alternating permutations on 2n letters that avoid a certain pattern of length 4 (see Lewis, 2012, Appendix, for precise definition).at n=5A217807
• Number of entries in the eighth cycles of all permutations of [n] when cycles are ordered by increasing lengths.at n=3A332912