|
|
A287125
|
|
Fixed point of the mapping 00->001, 1->110, starting with 00.
|
|
4
|
|
|
0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1
|
|
LINKS
|
|
|
EXAMPLE
|
Iterates, starting with 00:
00
001
001110
0011101101100
00111011011001101100110110001
|
|
MATHEMATICA
|
s = {0, 0}; w[0] = StringJoin[Map[ToString, s]];
w[n_] := StringReplace[w[n - 1], {"00" -> "001", "1" -> "110"}]
Table[w[n], {n, 0, 8}]
st = ToCharacterCode[w[11]] - 48 (* A287125 *)
Flatten[Position[st, 0]] (* A287126 *)
Flatten[Position[st, 1]] (* A287127 *)
Table[StringLength[w[n]], {n, 1, 35}] (* A287128 conjectured *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|