|
Search: id:A128681
|
|
|
| A128681 |
|
Numbers n such that n^3 divides 8^(n^2)+1. |
|
+0
12
|
|
| 1, 3, 9, 57, 171, 1467, 13131, 27873, 32547, 97641, 249489, 261633, 784899, 1218897, 1255347, 2140353, 4971027, 8246019, 9961491, 12914001, 14913081, 15915483, 23159043, 23851593, 24738057, 29884473, 40666707, 83512353, 127938537
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
COMMENT
|
3 divides a(n) for n>1.
|
|
CROSSREFS
|
Cf. A127263 = numbers n such that n^3 divide 2^(n^2)+1. Cf. A128677 = Least k>p such that (kp)^3 divides (p-1)^(kp)^2+1, where p = Prime[n]>2. Cf. A128678, A128679, A128680, A128682, A128683, A128684, A128685.
Sequence in context: A001194 A032179 A075979 this_sequence A040175 A105466 A018504
Adjacent sequences: A128678 A128679 A128680 this_sequence A128682 A128683 A128684
|
|
KEYWORD
|
hard,nonn
|
|
AUTHOR
|
Alexander Adamchuk (alex(AT)kolmogorov.com), Mar 31 2007
|
|
EXTENSIONS
|
More terms from Ryan Propper (rpropper(AT)cs.stanford.edu), Jan 13 2008
|
|
|
Search completed in 0.005 seconds
|
