Number of 0..n arrays of length n+1 with no adjacent pair equal to its immediately preceding adjacent pair, and new values introduced in 0..n order.
A212830
Number of 0..n arrays of length n+1 with no adjacent pair equal to its immediately preceding adjacent pair, and new values introduced in 0..n order.
Terms
- a(0) =2a(1) =5a(2) =13a(3) =44a(4) =168a(5) =717a(6) =3360a(7) =17092a(8) =93538a(9) =546873a(10) =3396379a(11) =22300885a(12) =154193327a(13) =1118804486a(14) =8493592723a(15) =67288261914a(16) =554996479921
External references
- oeis: A212830