Number of 3Xn integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself.
A266133
Number of 3Xn integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors exactly one smaller than itself.
Terms
- a(0) =1a(1) =20a(2) =77a(3) =117a(4) =278a(5) =1959a(6) =11044a(7) =36730a(8) =123887a(9) =598383a(10) =2919993a(11) =11429093a(12) =43919671a(13) =194434626a(14) =880889564a(15) =3627851352a(16) =14690154222a(17) =63196827262a(18) =276336307138
External references
- oeis: A266133