Number of 0..6 arrays of length n with each element differing from at least one neighbor by 2 or more, starting with 0.
A221513
Number of 0..6 arrays of length n with each element differing from at least one neighbor by 2 or more, starting with 0.
Terms
- a(0) =0a(1) =5a(2) =21a(3) =150a(4) =884a(5) =5513a(6) =33860a(7) =208756a(8) =1285694a(9) =7921082a(10) =48795589a(11) =300602292a(12) =1851824780a(13) =11407972817a(14) =70277580919a(15) =432937512858
External references
- oeis: A221513