|
Search: id:A060443
|
|
|
| A060443 |
|
Table T(n,k) in which n-th row lists prime factors of 2^n - 1 (n >= 2), without repetition. |
|
+0
3
|
|
| 0, 1, 3, 7, 3, 5, 31, 3, 7, 127, 3, 5, 17, 7, 73, 3, 11, 31, 23, 89, 3, 5, 7, 13, 8191, 3, 43, 127, 7, 31, 151, 3, 5, 17, 257, 131071, 3, 7, 19, 73, 524287, 3, 5, 11, 31, 41, 7, 127, 337, 3, 23, 89, 683, 47, 178481, 3, 5, 7, 13, 17, 241
(list; table; graph; listen)
|
|
|
OFFSET
|
0,3
|
|
|
COMMENT
|
For n>1, the length of row n is A046800(n). - T. D. Noe (noe(AT)sspectra.com), Aug 06 2007
|
|
REFERENCES
|
J. Brillhart et al., Factorizations of b^n +- 1. Contemporary Mathematics, Vol. 22, Amer. Math. Soc., Providence, RI, 2nd edition, 1985; and later supplements.
|
|
LINKS
|
T. D. Noe, Rows n=0..500 of triangle, flattened (derived from Brillhart et al.)
Joerg Arndt, Rows n=1..1200 of triangle when repetitions are included (derived from Brillhart et al.)
J. Brillhart et al., Factorizations of b^n +- 1, Contemporary Mathematics, Vol. 22, Amer. Math. Soc., Providence, RI, 3rd edition, 2002.
Jeroen Demeyer, Machine-readable Cunningham Tables
S. S. Wagstaff, Jr., The Cunningham Project
|
|
CROSSREFS
|
Cf. A001265.
Sequence in context: A096247 A122583 A001265 this_sequence A020810 A021732 A010705
Adjacent sequences: A060440 A060441 A060442 this_sequence A060444 A060445 A060446
|
|
KEYWORD
|
nonn,tabl
|
|
AUTHOR
|
njas
|
|
|
Search completed in 0.002 seconds
|
