A200046 Numbers n such that the equation x^n + (x+1)^n = (x+2)^n (mod n), x = 0..n-1 has no solution.

15, 25, 33, 35, 39, 55, 57, 69, 75, 95, 99, 115, 117, 119, 121, 123, 125, 129, 135, 143, 145, 153, 155, 169, 175, 195, 203, 205, 209, 215, 217, 221, 225, 235, 247, 253, 255, 259, 273, 275, 285, 289, 295, 299, 305, 309, 315, 319, 321, 323, 325, 333, 335, 339

Offset

1,1

Comments

All numbers are composites.

Links

Table of n, a(n) for n=1..54.

Maple

for n from 1 to 340 do:ii:=0:for x from 0 to n-1 do:if x^n+(x+1)^n -(x+2)^n mod n =0 then ii:=ii+1:else fi:od: if ii=0 then printf(`%d, `, n):else fi:od:

Crossrefs

Cf. A195637, A200219.

Sequence in context: A102802 A050692 A050693 * A349750 A171133 A152246

Adjacent sequences: A200043 A200044 A200045 * A200047 A200048 A200049

Keyword

nonn

Author

Michel Lagneau, Nov 14 2011

Status

approved