Triangle read by rows: T(n,k) = number of parking functions of length n whose lead number is k.

Terms

a(0) =1a(1) =2a(2) =1a(3) =8a(4) =5a(5) =3a(6) =50a(7) =34a(8) =25a(9) =16a(10) =432a(11) =307a(12) =243a(13) =189a(14) =125a(15) =4802a(16) =3506a(17) =2881a(18) =2401a(19) =1921a(20) =1296a(21) =65536a(22) =48729a(23) =40953a(24) =35328a(25) =30208a(26) =24583a(27) =16807a(28) =1062882a(29) =800738