a(n) = C(n) * d(n), where C(n) is the Catalan number and d(n) is the sorting probability of the Catalan poset P_n.

A335212

a(n) = C(n) * d(n), where C(n) is the Catalan number and d(n) is the sorting probability of the Catalan poset P_n.

Terms

    a(0) =0a(1) =1a(2) =4a(3) =8a(4) =8a(5) =9a(6) =110a(7) =572a(8) =2496a(9) =5762a(10) =3254a(11) =5020a(12) =117912a(13) =307819a(14) =420394a(15) =677350a(16) =9611700a(17) =58689330a(18) =32290388a(19) =430183260a(20) =180484980a(21) =5983159650a(22) =44850171444a(23) =120220997328a(24) =235364198128a(25) =135740049556

External references