|
|
A222758
|
|
Irregular table of conjectured indices of Fibonacci numbers with exactly n 1-bits in their binary representation.
|
|
5
|
|
|
0, 1, 2, 3, 6, 4, 5, 9, 12, 7, 8, 11, 15, 18, 10, 13, 19, 14, 21, 24, 25, 17, 16, 20, 22, 30, 26, 32, 38, 23, 27, 28, 31, 35, 29, 34, 36, 39, 48, 33, 47, 37, 42, 45, 68, 40, 43, 54, 57, 60, 41, 51, 52, 53, 44, 49, 50, 61, 66, 59, 64, 46, 56, 55, 71, 77
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,3
|
|
COMMENTS
|
Every nonnegative integer appears.
|
|
LINKS
|
|
|
EXAMPLE
|
The irregular table begins
{0},
{1, 2, 3, 6},
{4, 5, 9, 12},
{7, 8},
{11, 15, 18},
{10, 13, 19},
{14, 21, 24, 25},
{17},
{16, 20, 22, 30},
{26, 32},
{38},
{23, 27, 28, 31, 35}
|
|
MATHEMATICA
|
nn = 100; f = Fibonacci[Range[0, nn]]; t2 = Transpose[{Range[0, nn], f}]; Table[Select[Range[nn + 1], Count[IntegerDigits[t2[[#, 2]], 2], 1] == n &] - 1, {n, 0, nn/5}]
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,tabf
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|