Number of 0..n arrays of length 7 with each element differing from at least one neighbor by 1 or less, starting with 0.

A221686

Number of 0..n arrays of length 7 with each element differing from at least one neighbor by 1 or less, starting with 0.

Terms

    a(0) =64a(1) =320a(2) =844a(3) =1692a(4) =2856a(5) =4326a(6) =6102a(7) =8184a(8) =10572a(9) =13266a(10) =16266a(11) =19572a(12) =23184a(13) =27102a(14) =31326a(15) =35856a(16) =40692a(17) =45834a(18) =51282a(19) =57036a(20) =63096a(21) =69462a(22) =76134a(23) =83112a(24) =90396a(25) =97986a(26) =105882a(27) =114084a(28) =122592a(29) =131406

External references