Number of (n+1)X5 0..2 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.
A203724
Number of (n+1)X5 0..2 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.
Terms
- a(0) =888a(1) =4737a(2) =20290a(3) =72777a(4) =230014a(5) =656441a(6) =1728140a(7) =4246268a(8) =9847415a(9) =21700159a(10) =45744109a(11) =92663818a(12) =181178545a(13) =343044939a(14) =630954514a(15) =1130114352a(16) =1975727787a(17) =3377874220a(18) =5657695118a(19) =9297612083a(20) =15012132902a(21) =23843994305a(22) =37296211132
External references
- oeis: A203724