Triangle T(n,m) read by rows: number of n X m binary matrices with no rows or columns in which all entries are the same (n >= 1, 1 <= m <= n).
A283654
Triangle T(n,m) read by rows: number of n X m binary matrices with no rows or columns in which all entries are the same (n >= 1, 1 <= m <= n).
Terms
- a(0) =0a(1) =0a(2) =2a(3) =0a(4) =6a(5) =102a(6) =0a(7) =14a(8) =906a(9) =22874a(10) =0a(11) =30a(12) =6510a(13) =417810a(14) =17633670a(15) =0a(16) =62a(17) =42666a(18) =6644714a(19) =622433730a(20) =46959933962a(21) =0a(22) =126a(23) =267582a(24) =99044946a(25) =20218802310a(28) =0a(29) =254a(30) =1641786a(31) =1430529674
External references
- oeis: A283654