Number of nX5 0..4 arrays with each element equal to the number its horizontal and vertical neighbors unequal to itself.

A195959

Number of nX5 0..4 arrays with each element equal to the number its horizontal and vertical neighbors unequal to itself.

Terms

    a(0) =1a(1) =5a(2) =21a(3) =25a(4) =33a(5) =93a(6) =92a(7) =229a(8) =468a(9) =795a(10) =1482a(11) =2849a(12) =5272a(13) =10756a(14) =20834a(15) =38985a(16) =77732a(17) =152388a(18) =300791a(19) =600543a(20) =1183238a(21) =2351462a(22) =4735415a(23) =9484441a(24) =19063155a(25) =38456880a(26) =77567644a(27) =157185914a(28) =319230043a(29) =648074014

External references