|
| |
|
|
A057487
|
|
Numbers n such that x^n + x^9 + x^8 + x^7 + x^6 + x^5 + x^4 + x^3 + x^2 + x +1 is irreducible over GF(2).
|
|
0
| |
|
|
10, 14, 20, 50, 52, 64, 104, 119, 155, 167, 170, 205, 386, 464, 617
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
MATHEMATICA
| Do[ If[ ToString[ Factor[ x^n + Sum[ x^m, {m, 0, 9} ], Modulus -> 2 ] ] == ToString[ x^n + Sum[ x^m, {m, 0, 9} ] ], Print[ n ] ], {n, 0, 750} ]
|
|
|
CROSSREFS
| Sequence in context: A162685 A031274 A063920 * A073486 A073487 A089995
Adjacent sequences: A057484 A057485 A057486 * A057488 A057489 A057490
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 28 2000
|
| |
|
|