|
Search: id:A056533
|
|
|
| A056533 |
|
Even sieve: start with natural numbers, remove every 2nd term, remove every 4th term from what remains, remove every 6th term from what remains, etc. |
|
+0
2
|
|
| 1, 3, 5, 9, 11, 17, 19, 25, 27, 35, 37, 43, 51, 57, 59, 69, 75, 83, 85, 97, 101, 113, 117, 129, 131, 147, 153, 161, 163, 181, 185, 195, 203, 211, 219, 233, 243, 257, 259, 273, 275, 291, 307, 315, 321, 339, 341, 357, 369, 387, 389, 401, 417, 425, 437, 453, 465
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
LINKS
|
Index entries for sequences generated by sieves
|
|
EXAMPLE
|
Start with (1,2,3,4,5,6,7,8,9,10,11,12,....), remove every 2nd term to get (1,3,5,7,9,11,...), remove every 4th term to get (1,3,5,9,11,...), etc.
|
|
MATHEMATICA
|
lst = Range@480; i = 2; While[i <= (len = Length[lst]), lst = Drop[lst, {i, len, i}]; i+=2]; lst (from Robert G. Wilson v (rgwv(at)rgwv.com), May 26 2006)
|
|
CROSSREFS
|
After k-th round of sieve A001147/A000165 of natural numbers remain, declining slowly to zero
Sequence in context: A114512 A118113 A076193 this_sequence A114186 A117992 A015614
Adjacent sequences: A056530 A056531 A056532 this_sequence A056534 A056535 A056536
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Henry Bottomley (se16(AT)btinternet.com), Jun 19 2000
|
|
|
Search completed in 0.002 seconds
|
