Number of nX2 0..7 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.
A201095
Number of nX2 0..7 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.
Terms
- a(0) =28a(1) =140a(2) =140a(3) =14a(4) =728a(5) =3696a(6) =3273a(7) =323a(8) =10516a(9) =37590a(10) =22872a(11) =1288a(12) =52828a(13) =199384a(14) =125466a(15) =8034a(16) =251361a(17) =795924a(18) =417829a(19) =19994a(20) =734712a(21) =2454383a(22) =1348173a(23) =72589a(24) =2214440a(25) =6602880a(26) =3229480a(27) =143081a(28) =4945844a(29) =15462250
External references
- oeis: A201095