A374548 Number of length n inversion sequences avoiding the patterns 011 and 120.
1, 1, 2, 5, 14, 42, 132, 431, 1452, 5026, 17808, 64398, 237097, 886935, 3365348, 12933691, 50285912, 197586405, 783922944, 3138088910, 12666148475, 51517864816, 211047556685, 870385025022, 3612193740355, 15079839929453, 63305470339527, 267159465034792
Offset: 0
Keywords
Links
- Benjamin Testart, Table of n, a(n) for n = 0..430
- Benjamin Testart, Completing the enumeration of inversion sequences avoiding one or two patterns of length 3, arXiv:2407.07701 [math.CO], 2024.