A322251 Number of permutations of [n] in which the length of every increasing run is 0 or 1 (mod 3).

1, 1, 1, 2, 8, 32, 132, 702, 4566, 31670, 237446, 2010626, 18782106, 187594266, 2009039346, 23200862726, 286250968646, 3740867774726, 51734894498790, 756345994706634, 11641318110171330, 188004200777993570, 3180713596572408650, 56276908859288339822

Offset: 0

Author

Alois P. Heinz, Nov 30 2018

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..470

Crossrefs

Cf. A317111, A322262.