n=x3+y3+2z3
D5 Sum of four cubes.
in Richard K. Guy, "Unsolve Problems in Number Theory" Second Edition, Springer-Verlag, 1994
Solutions of n=x3+y3+2z3
300 <= n <= 399, max{|x|,|y|,|z|} <= 4*106.
| n | x | y | z |
|---|
| 300 | -3 | 7 | -2 |
| 301 | -38 | 43 | -23 |
| 302 | -7 | 11 | -7 |
| 303 | 2 | -9 | 8 |
| 304 | 3 | 3 | 5 |
| 305 | 6 | -7 | 6 |
| 306 | -2 | 4 | 5 |
| 307 | 0 | -5 | 6 |
| 308 | 1 | -5 | 6 |
| 309 | 6 | 7 | -5 |
| 310 | -8 | 22 | -17 |
| 311 | -4 | 5 | 5 |
| 312 | 11 | 15 | -13 |
| 313 | -1 | 4 | 5 |
| 314 | 0 | 4 | 5 |
| 315 | 1 | 4 | 5 |
| 316 | -3 | 7 | 0 |
| 317 | 4 | 5 | 4 |
| 318 | -3 | 7 | 1 |
| 319 | -2 | 7 | -2 |
| 320 | -13 | 47 | -37 |
| 321 | 41 | -42 | 14 |
| 322 | 2 | 4 | 5 |
| 323 | 16 | -21 | 14 |
| 324 | 53 | 55 | -54 |
| 325 | 5 | 6 | -2 |
| 326 | -1 | 7 | -2 |
| 327 | 0 | 7 | -2 |
| 328 | 1 | 7 | -2 |
| 329 | -10 | 11 | -1 |
| 330 | -12 | 14 | -7 |
| 331 | -10 | 11 | 0 |
| 332 | -3 | 7 | 2 |
| 333 | -2 | 7 | -1 |
| 334 | 4 | 6 | 3 |
| 335 | -2 | 7 | 0 |
| 336 | 25 | -27 | 13 |
| 337 | -2 | 7 | 1 |
| 338 | -7 | -7 | 8 |
| 339 | 5 | 6 | -1 |
| 340 | -1 | 7 | -1 |
| 341 | 3 | 4 | 5 |
| 342 | -1 | 7 | 0 |
| 343 | -1 | 6 | 4 |
| 344 | 1 | 7 | 0 |
| 345 | 1 | 6 | 4 |
| 346 | 1 | 7 | 1 |
| 347 | -10 | 11 | 2 |
| 348 | -3 | 5 | 5 |
| 349 | 2 | 7 | -1 |
| 350 | -6 | 8 | 3 |
| 351 | 2 | 7 | 0 |
| 352 | -9 | 11 | -5 |
| 353 | 2 | 7 | 1 |
| 354 | 3 | 7 | -2 |
| 355 | 10 | -11 | 7 |
| 356 | 129521 | 1048469 | -832693 |
| 357 | 5 | 6 | 2 |
| 358 | -1 | 7 | 2 |
| 359 | 0 | 7 | 2 |
| 360 | 1 | 7 | 2 |
| 361 | 4 | 9 | -6 |
| 362 | 4 | -16 | 13 |
| 363 | -21 | 22 | -8 |
| 364 | -809 | 829 | -272 |
| 365 | -217 | 362 | -265 |
| 366 | 60 | 62 | -61 |
| 367 | -2 | 5 | 5 |
| 368 | 3 | 7 | -1 |
| 369 | 1 | -4 | 6 |
| 370 | 3 | 7 | 0 |
| 371 | 3 | 6 | 4 |
| 372 | 3 | 7 | 1 |
| 373 | 28 | -35 | 22 |
| 374 | -1 | 5 | 5 |
| 375 | 18 | -31 | 23 |
| 376 | 1 | 5 | 5 |
| 377 | -6 | 7 | 5 |
| 378 | 4 | 4 | 5 |
| 379 | 83 | -84 | 22 |
| 380 | 47 | -89 | 67 |
| 381 | -11 | 12 | -2 |
| 382 | 142 | 214 | -185 |
| 383 | 2 | 5 | 5 |
| 384 | -7 | 9 | -1 |
| 385 | 1 | 8 | -4 |
| 386 | 3 | 7 | 2 |
| 387 | -5 | 8 | 0 |
| 388 | -7 | 9 | 1 |
| 389 | -2 | 7 | 3 |
| 390 | 6 | -8 | 7 |
| 391 | 4 | 7 | -2 |
| 392 | -1 | -97 | 77 |
| 393 | 14 | -15 | 8 |
| 394 | -4 | 8 | -3 |
| 395 | 3 | -4 | 6 |
| 396 | -1 | 7 | 3 |
| 397 | -2 | -3 | 6 |
| 398 | 1 | 7 | 3 |
| 399 | -9 | 10 | 4 |
E-mail : kc2h-msm@asahi-net.or.jpHisanori Mishima