Number of 0..7 arrays of length n with each element unequal to at least one neighbor, starting with 0.
A221462
Number of 0..7 arrays of length n with each element unequal to at least one neighbor, starting with 0.
Terms
- a(0) =0a(1) =7a(2) =49a(3) =392a(4) =3087a(5) =24353a(6) =192080a(7) =1515031a(8) =11949777a(9) =94253656a(10) =743424031a(11) =5863743809a(12) =46250174880a(13) =364797430823
External references
- oeis: A221462