|
| |
|
|
A138954
|
|
Number of complement symmetries in the rotations of the binary expansion of a number.
|
|
1
| |
|
|
0, 0, 1, 0, 0, 0, 0, 0, 1, 2, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,10
|
|
|
COMMENTS
| It seems that the number of complement rotational symmetries is nonzero iff #0 = #1 in the binary expansion of a number.
|
|
|
EXAMPLE
| a(2) = 1 because 2 has binary expansion 10 and the complement shows up once in rotations;
a(10) = 2 because 10 has binary expanasion 1010 and its complement shows up twice in rotations.
|
|
|
CROSSREFS
| Cf. A138904.
Sequence in context: A183896 A027652 A127282 * A064530 A037047 A118917
Adjacent sequences: A138951 A138952 A138953 * A138955 A138956 A138957
|
|
|
KEYWORD
| easy,nonn
|
|
|
AUTHOR
| Max Sills (maxwell.sills(AT)case.edu), Apr 03 2008
|
| |
|
|
