Number of 0..7 arrays of length n with no adjacent pair equal to its immediately preceding adjacent pair, and new values introduced in 0..7 order.
A212828
Number of 0..7 arrays of length n with no adjacent pair equal to its immediately preceding adjacent pair, and new values introduced in 0..7 order.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =13a(4) =44a(5) =168a(6) =717a(7) =3360a(8) =17091a(9) =93492a(10) =545670a(11) =3372738a(12) =21911216a(13) =148486735a(14) =1041923520a(15) =7518618028a(16) =55460237723a(17) =416078640459
External references
- oeis: A212828