|
| |
|
|
A112820
|
|
Numbers n such that 17*LCM(1,2,3,...,n) equals the denominator of the n-th harmonic number H(n).
|
|
9
| |
|
|
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; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| 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: A108835 A185668 A005933 * A062906 A133514 A158587
Adjacent sequences: A112817 A112818 A112819 * A112821 A112822 A112823
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 17 2005
|
| |
|
|
