A374549 Number of length n inversion sequences avoiding the patterns 100 and 120.
1, 1, 2, 6, 22, 92, 421, 2062, 10646, 57324, 319436, 1831585, 10758458, 64513454, 393846399, 2442328993, 15356020884, 97741913382, 628994116349, 4087863691061, 26805206933158, 177198351316543, 1180073345351131, 7912190584017869, 53380776660751987
Offset: 0
Keywords
Links
- Benjamin Testart, Table of n, a(n) for n = 0..350
- Benjamin Testart, Completing the enumeration of inversion sequences avoiding one or two patterns of length 3, arXiv:2407.07701 [math.CO], 2024.