|
Search: id:A114752
|
|
|
| A114752 |
|
The following triangle contains n consecutive numbers beginning from n in ascending order if n is odd else in descnding order. 1 3 2 3 4 5 7 6 5 4 5 6 7 8 9 11 10 9 8 7 6 ... sequence contains the leading diagonal. |
|
+0
4
|
|
| 1, 2, 5, 4, 9, 6, 13, 8, 17, 10, 21, 12, 25, 14, 29, 16, 33, 18, 37, 20, 41, 22, 45, 24, 49, 26, 53, 28, 57, 30, 61, 32, 65, 34, 69, 36, 73, 38, 77, 40, 81, 42, 85, 44, 89, 46, 93, 48, 97, 50, 101, 52, 105, 54, 109, 56, 113, 58, 117, 60, 121, 62, 125, 64, 129, 66, 133, 68, 137
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
FORMULA
|
a(2n) = 2n, a(2n+1) = 4n+1 - Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), May 05 2006
Equals A133566 * [1,2,3,...]. - Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 16 2007
|
|
CROSSREFS
|
Cf. A114751, A114753.
Cf. A133566.
Adjacent sequences: A114749 A114750 A114751 this_sequence A114753 A114754 A114755
Sequence in context: A134079 A080031 A065221 this_sequence A123302 A120119 A048678
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 15 2005
|
|
EXTENSIONS
|
More terms from Joshua Zucker (joshua.zucker(AT)stanfordalumni.org), May 05 2006
|
|
|
Search completed in 0.002 seconds
|
