Table read by antidiagonals: T(m,n) = number of 4-metered (m,n)-parking functions.

Terms

a(0) =1a(1) =0a(2) =2a(3) =0a(4) =3a(5) =3a(6) =0a(7) =0a(8) =8a(9) =4a(10) =0a(11) =0a(12) =16a(13) =15a(14) =5a(15) =0a(16) =0a(17) =0a(18) =50a(19) =24a(20) =6a(21) =0a(22) =0a(23) =0a(24) =125a(25) =108a(26) =35a(27) =7a(28) =0a(29) =0