Number of length-6 0..n arrays with no adjacent pair x,x+1 followed at any distance by x+1,x.
A268460
Number of length-6 0..n arrays with no adjacent pair x,x+1 followed at any distance by x+1,x.
Terms
- a(0) =22a(1) =456a(2) =3146a(3) =13204a(4) =41526a(5) =108032a(6) =245626a(7) =504876a(8) =959414a(9) =1712056a(10) =2901642a(11) =4710596a(12) =7373206a(13) =11184624a(14) =16510586a(15) =23797852a(16) =33585366a(17) =46516136a(18) =63349834a(19) =84976116a(20) =112428662a(21) =146899936a(22) =189756666a(23) =242556044a(24) =307062646a(25) =385266072
External references
- oeis: A268460