|
Search: id:A048859
|
|
|
| A048859 |
|
Smarandache sieve: keep the first 2 numbers, delete the next 3 numbers; keep the next 3 numbers, delete the next 4 numbers; keep the next 4 numbers, delete the next 5 numbers; and so on. In other words, keep the next k numbers and delete the next k+1 numbers, for k = 2, 3, ... |
|
+0
3
|
|
| 1, 2, 6, 7, 8, 13, 14, 15, 16, 22, 23, 24, 25, 26, 33, 34, 35, 36, 37, 38, 46, 47, 48, 49, 50, 51, 52, 61, 62, 63, 64, 65, 66, 67, 68, 78, 79, 80, 81, 82, 83, 84, 85, 86, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
REFERENCES
|
C. Dumitrescu & V. Seleacu, editors, Some Notions and Questions in Number Theory, Vol. I, Erhus Publ., Glendale, 1994.
M. Le, On the Smarandache n-ary Sieve, Smarandache Notions Journal, Vol. 10, No. 1-2-3, 1999, 146-147.
F. Smarandache, Properties of Numbers, 1972.
|
|
LINKS
|
C. Dumitrescu & V. Seleacu, editors, Some Notions and Questions in Number Theory, Vol. I.
M. L. Perez et al., eds., Smarandache Notions Journal
Index entries for sequences generated by sieves
|
|
EXAMPLE
|
List the natural numbers: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, ...
Keep the first two numbers 1, 2 and delete the next three numbers 3, 4, 5.
Keep the next three numbers 6, 7, 8 and delete the next four numbers 9, 10, 11, 12. And so on.
|
|
CROSSREFS
|
Cf. A007950, A007951, A007952.
Sequence in context: A039592 A037454 A030366 this_sequence A026311 A063291 A088225
Adjacent sequences: A048856 A048857 A048858 this_sequence A048860 A048861 A048862
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Charles T. Le (charlestle(AT)yahoo.com)
|
|
EXTENSIONS
|
Corrected and revised by the author, Mar 24 2004
More terms from Bernardo Boncompagni (redgolpe(AT)redgolpe.com) Jul 27 2004
|
|
|
Search completed in 0.002 seconds
|
