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

Author

Michel Lagneau, Nov 14 2011

Keywords

• nonn

Comments

All numbers are composites.

Crossrefs

Cf. A195637, A200219.

Programs

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: