Number of 0..n arrays of length 5 with each element differing from at least one neighbor by 2 or more.

A221525

Number of 0..n arrays of length 5 with each element differing from at least one neighbor by 2 or more.

Terms

    a(0) =0a(1) =6a(2) =94a(3) =536a(4) =1940a(5) =5368a(6) =12458a(7) =25544a(8) =47776a(9) =83240a(10) =137078a(11) =215608a(12) =326444a(13) =478616a(14) =682690a(15) =950888a(16) =1297208a(17) =1737544a(18) =2289806a(19) =2974040a(20) =3812548a(21) =4830008a(22) =6053594a(23) =7513096a(24) =9241040a(25) =11272808a(26) =13646758a(27) =16404344a(28) =19590236a(29) =23252440

External references