Number of fixed points in range [A014137(n-1)..A014138(n-1)] of permutation A069772.

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =6a(5) =2a(6) =20a(7) =5a(8) =70a(9) =14a(10) =252a(11) =42a(12) =924a(13) =132a(14) =3432a(15) =429a(16) =12870a(17) =1430a(18) =48620a(19) =4862a(20) =184756a(21) =16796a(22) =705432a(23) =58786a(24) =2704156a(25) =208012a(26) =10400600a(27) =742900a(28) =40116600a(29) =2674440