Number of nonnegative integer arrays of length n+5 with new values 0 upwards introduced in order, no three adjacent elements equal, and containing the value n+1.
A211838
Number of nonnegative integer arrays of length n+5 with new values 0 upwards introduced in order, no three adjacent elements equal, and containing the value n+1.
Terms
- a(0) =146a(1) =461a(2) =1254a(3) =2997a(4) =6451a(5) =12766a(6) =23596a(7) =41229a(8) =68732a(9) =110111a(10) =170486a(11) =256281a(12) =375429a(13) =537592a(14) =754396a(15) =1039681a(16) =1409766a(17) =1883729a(18) =2483702a(19) =3235181a(20) =4167351a(21) =5313426a(22) =6711004a(23) =8402437a(24) =10435216a(25) =12862371a(26) =15742886a(27) =19142129a(28) =23132297
External references
- oeis: A211838