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

A221599

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

Terms

    a(0) =128a(1) =1113a(2) =4240a(3) =11011a(4) =22912a(5) =41401a(6) =67936a(7) =103975a(8) =150976a(9) =210397a(10) =283696a(11) =372331a(12) =477760a(13) =601441a(14) =744832a(15) =909391a(16) =1096576a(17) =1307845a(18) =1544656a(19) =1808467a(20) =2100736a(21) =2422921a(22) =2776480a(23) =3162871a(24) =3583552a(25) =4039981a(26) =4533616a(27) =5065915a(28) =5638336

External references