|
Search: id:A093817
|
|
|
| A093817 |
|
Largest prime factor of 2^n-3. |
|
+0
2
|
|
| 1, 5, 13, 29, 61, 5, 23, 509, 1021, 409, 4093, 431, 16381, 6553, 71, 2473, 23831, 97, 1048573, 2713, 4194301, 1677721, 16777213, 70051, 5197, 31033, 1877171, 536870909, 46684427, 22605091, 464773, 296204641, 3360037, 6871947673, 283007
(list; graph; listen)
|
|
|
OFFSET
|
2,2
|
|
|
MATHEMATICA
|
PrimeFactors[n_] := Flatten[ Table[ # [[1]], {1}] & /@ FactorInteger[n]]; Table[ PrimeFactors[2^n - 3][[ -1]], {n, 3, 46}] (from Robert G. Wilson v May 24 2004)
|
|
CROSSREFS
|
Cf. A093810, A050414, A050415.
Sequence in context: A023619 A020576 A093810 this_sequence A120274 A036982 A029580
Adjacent sequences: A093814 A093815 A093816 this_sequence A093818 A093819 A093820
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Yasutoshi Kohmoto (zbi74583(AT)boat.zero.ad.jp), May 11 2004
|
|
EXTENSIONS
|
More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), May 24 2004
|
|
|
Search completed in 0.002 seconds
|
