Length of lists created by n substitutions k -> Range[k+1,-Abs[k],-2] starting with {1}.
A084083
Length of lists created by n substitutions k -> Range[k+1,-Abs[k],-2] starting with {1}.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =9a(4) =19a(5) =44a(6) =96a(7) =227a(8) =507a(9) =1218a(10) =2768a(11) =6732a(12) =15504a(13) =38076a(14) =88616a(15) =219351a(16) =514855a(17) =1282710a(18) =3031860a(19) =7594665
External references
- oeis: A084083