Number of Grassmannian permutations of size n that avoid a pattern, sigma, where sigma is a pattern of size 8 with exactly one descent.

A362195

Number of Grassmannian permutations of size n that avoid a pattern, sigma, where sigma is a pattern of size 8 with exactly one descent.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =12a(5) =27a(6) =58a(7) =121a(8) =247a(9) =493a(10) =958a(11) =1805a(12) =3290a(13) =5799a(14) =9894a(15) =16369a(16) =26317a(17) =41209a(18) =62986a(19) =94165a(20) =137960a(21) =198419a(22) =280578a(23) =390633a(24) =536131a(25) =726181a(26) =971686a(27) =1285597a(28) =1683190a(29) =2182367

External references