Number of Grassmannian permutations of size n that avoid a pattern, sigma, where sigma is a pattern of size 9 with exactly one descent.

A362196

Number of Grassmannian permutations of size n that avoid a pattern, sigma, where sigma is a pattern of size 9 with exactly one descent.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =12a(5) =27a(6) =58a(7) =121a(8) =248a(9) =502a(10) =1003a(11) =1970a(12) =3785a(13) =7086a(14) =12897a(15) =22804a(16) =39187a(17) =65519a(18) =106744a(19) =169747a(20) =263930a(21) =401909a(22) =600348a(23) =880947a(24) =1271602a(25) =1807756a(26) =2533961a(27) =3505672a(28) =4791295a(29) =6474512

External references