Number of inversion sequences avoiding pattern 201 (or 210).

A263777

Number of inversion sequences avoiding pattern 201 (or 210).

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =118a(6) =674a(7) =4306a(8) =29990a(9) =223668a(10) =1763468a(11) =14558588a(12) =124938648a(13) =1108243002a(14) =10115202962a(15) =94652608690a(16) =905339525594

External references