|
Search: id:A162823
|
|
|
| A162823 |
|
Positive numbers n such that 42*n/(42-n) are integers. |
|
+0
6
|
|
| 6, 14, 21, 24, 28, 30, 33, 35, 36, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 49, 51, 54, 56, 60, 63, 70, 78, 84, 91, 105, 126, 140, 168, 189, 238, 294, 336, 483, 630, 924, 1806
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
The number n=42 is explicitly included, treating the result of division through zero as an integer.
|
|
MATHEMATICA
|
f[a_, b_]:=(a*b)/(a-b); a=42; lst={}; Do[If[f[a, n]==IntegerPart[f[a, n]], AppendTo[lst, n]], {n, 9!}]; lst
|
|
CROSSREFS
|
Cf. A162688, A162689, A162690, A162691, A162692, A162693, A162694, A162817, A162818, A162819, A162820, A162821, A162822
Sequence in context: A064709 A118129 A046712 this_sequence A020171 A122784 A063299
Adjacent sequences: A162820 A162821 A162822 this_sequence A162824 A162825 A162826
|
|
KEYWORD
|
nonn,fini,full
|
|
AUTHOR
|
Vladimir Orlovsky (4vladimir(AT)gmail.com), Jul 13 2009
|
|
EXTENSIONS
|
Keywords fini,full added by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 31 2009
|
|
|
Search completed in 0.002 seconds
|
