|
Search: id:A112820
|
|
|
| A112820 |
|
Numbers n such that 17*LCM(1,2,3,...,n) equals the denominator of the n-th harmonic number H(n). |
|
+0
10
|
|
| 272, 273, 274, 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 79507, 79508, 79509, 79510, 79511, 79512, 79513, 79514, 79515, 79516, 79517, 79518, 79519, 79520, 79521, 79522, 79523, 79524, 79525, 79526, 79527, 79528
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
When 17 occurs in A110566.
|
|
MATHEMATICA
|
a = h = 1; t = {}; Do[a = LCM[a, n]; h = h + 1/n; If[a/Denominator[h] == 17, AppendTo[t, n]], {n, 79528}]; t
|
|
CROSSREFS
|
Cf. A002805, A003418, A110566.
Cf. A098464, A112813, A112814, A112815, A112816, A112817, A112818, A112819, A112821, A112822.
Sequence in context: A038655 A108835 A005933 this_sequence A062906 A133514 A158587
Adjacent sequences: A112817 A112818 A112819 this_sequence A112821 A112822 A112823
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 17 2005
|
|
|
Search completed in 0.002 seconds
|
