Number of inversion sequences of length n avoiding the consecutive patterns 010, 021, and 120.
A328432
Number of inversion sequences of length n avoiding the consecutive patterns 010, 021, and 120.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =15a(5) =53a(6) =216a(7) =994a(8) =5076a(9) =28403a(10) =172538a(11) =1129511a(12) =7919314a(13) =59150556a(14) =468504022a(15) =3919569708a(16) =34518111783a(17) =319030219223
External references
- oeis: A328432