a(n) = number of distinct words arising in Post's tag system {00, 1101} applied to the word (100)^n , or a(n) = -1 if this word has an unbounded trajectory.
A302202
a(n) = number of distinct words arising in Post's tag system {00, 1101} applied to the word (100)^n , or a(n) = -1 if this word has an unbounded trajectory.
Terms
- a(0) =6a(1) =21a(2) =16a(3) =31a(4) =412a(5) =57a(6) =2156a(7) =859a(8) =382a(9) =2811a(10) =372a(11) =2609a(12) =704a(13) =37913a(14) =618a(15) =155a(16) =1008a(17) =2407a(18) =1210a(19) =629a(20) =5286a(21) =1779a(22) =1468a(23) =4346275a(24) =4130a(25) =3247a(26) =7024a(27) =3891a(28) =14638a(29) =7025
External references
- oeis: A302202