Number of permutations of [n] with no increasing runs of even length.
A097597
Number of permutations of [n] with no increasing runs of even length.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =7a(5) =25a(6) =102a(7) =531a(8) =3141a(9) =20218a(10) =146215a(11) =1174889a(12) =10225678a(13) =96226363a(14) =978420285a(15) =10657592850a(16) =123672458583
External references
- oeis: A097597