|
Search: id:A122569
|
|
|
| A122569 |
|
Consider the Thue-Morse sequence (A010059) at each iteration. Read each reversed string as a binary number and convert it to a decimal number. |
|
+0
1
|
|
| 1, 1, 9, 105, 38505, 1771476585, 10838310072981296745, 140350834813144189858090274002849666665, 68033174967769840440887906939858451149105560803546820641877549596291376780905
(list; graph; listen)
|
|
|
OFFSET
|
1,3
|
|
|
LINKS
|
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics
|
|
FORMULA
|
T(n,m)=ThueMorse(n, 1), a(n) = Sum_{m=1..2^(n - 1)} T(n,m)*2^(m - 1).
|
|
MATHEMATICA
|
FromDigits[ #, 2] & /@ NestList[Flatten[ # /. {1 -> {0, 1}, 0 -> {1, 0}}] &, {1}, 8] (* Robert G. Wilson v Sep 25 2006 *)
|
|
CROSSREFS
|
Cf. A010059.
Sequence in context: A110698 A012485 A052503 this_sequence A039619 A080505 A104224
Adjacent sequences: A122566 A122567 A122568 this_sequence A122570 A122571 A122572
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Roger Bagula (rlbagulatftn(AT)yahoo.com), Sep 17 2006
|
|
EXTENSIONS
|
Edited by Robert G. Wilson v Sep 25 2006
|
|
|
Search completed in 0.002 seconds
|
