84889638

Appears in sequences

• Number of permutations of [n] having exactly five alternating descents.at n=6A302898
• Number of permutations of [n] having exactly six alternating descents.at n=5A302899
• Number of permutations of [2n] having exactly n-1 alternating descents.at n=6A302904
• Number of permutations of [n] having exactly ceiling(n/2)-1 alternating descents.at n=12A302905