Number of n element 0..2 arrays with each element the minimum of 6 adjacent elements of a random 0..2 array of n+5 elements.

A217881

Number of n element 0..2 arrays with each element the minimum of 6 adjacent elements of a random 0..2 array of n+5 elements.

Terms

    a(0) =3a(1) =9a(2) =22a(3) =46a(4) =86a(5) =148a(6) =239a(7) =372a(8) =576a(9) =915a(10) =1520a(11) =2639a(12) =4711a(13) =8471a(14) =15107a(15) =26516a(16) =45758a(17) =77899a(18) =131586a(19) =221935a(20) =375670a(21) =640002a(22) =1097628a(23) =1891754a(24) =3267763a(25) =5643077a(26) =9725666a(27) =16717471a(28) =28666522a(29) =49078549

External references