Number of (5+1) X (n+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.
A250882
Number of (5+1) X (n+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.
Terms
- a(0) =37130a(1) =131068a(2) =317878a(3) =629528a(4) =1097986a(5) =1755220a(6) =2633198a(7) =3763888a(8) =5179258a(9) =6911276a(10) =8991910a(11) =11453128a(12) =14326898a(13) =17645188a(14) =21439966a(15) =25743200a(16) =30586858a(17) =36002908a(18) =42023318a(19) =48680056a(20) =56005090a(21) =64030388a(22) =72787918a(23) =82309648a(24) =92627546
External references
- oeis: A250882