8460090160

Appears in sequences

• Number of permutations p of [n] such that the sequence of ascents and descents of 0p or of 0p0 (if n is odd) forms a Dyck path.at n=14A303284
• Number of permutations p of [2n] such that the sequence of ascents and descents of p0 forms a Dyck path.at n=7A303285
• Number of permutations p of [n] such that the sequence of ascents and descents of p or of p0 (if n is even) forms a Dyck path.at n=14A303287