Number of inversion sequences of length n avoiding the consecutive patterns 000 and 100.
A328440
Number of inversion sequences of length n avoiding the consecutive patterns 000 and 100.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =18a(5) =81a(6) =448a(7) =2920a(8) =21955a(9) =186981a(10) =1779170a(11) =18706222a(12) =215364181a(13) =2694650157a(14) =36408144034a(15) =528302958022
External references
- oeis: A328440