Number of nX2 0..2 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease.
A201189
Number of nX2 0..2 arrays with every row and column running average nondecreasing rightwards and downwards but some diagonal running average having a decrease.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =6a(4) =24a(5) =80a(6) =239a(7) =665a(8) =1756a(9) =4459a(10) =10978a(11) =26369a(12) =62066a(13) =143647a(14) =327756a(15) =738794a(16) =1647917a(17) =3642331a(18) =7986246a(19) =17387367a(20) =37618098a(21) =80932917a(22) =173248897a(23) =369190346a(24) =783527077a(25) =1656712522a(26) =3491205863a(27) =7334452733a(28) =15365201271a(29) =32106206735
External references
- oeis: A201189