Triangle of number of 312-avoiding reduced valid hook configurations with n hooks that are on permutations with 2n + k points, for n=1 and 1<=k<=n.

A338368

Triangle of number of 312-avoiding reduced valid hook configurations with n hooks that are on permutations with 2n + k points, for n=1 and 1<=k<=n.

Terms

    a(0) =1a(1) =3a(2) =5a(3) =14a(4) =51a(5) =42a(6) =84a(7) =485a(8) =849a(9) =462a(10) =594a(11) =4743a(12) =13004a(13) =14819a(14) =6006a(15) =4719a(16) =48309a(17) =182311a(18) =322789a(19) =271452a(20) =87516a(21) =40898a(22) =511607a(23) =2472322a(24) =5999489a(25) =7794646a(26) =5182011a(27) =13856

External references