All 16:9 resolutions up to 4000

public class Main {
    public static void main(String[] args) {
        for (int i = 0; i < 4000; i++) {
            double d = i * 0.5625;
            if ((d == Math.floor(d)) && !Double.isInfinite(d)) {
                System.out.println(i + "x" + (int) d);
            }
        }
    }
}

0x0
16x9
32x18
48x27
64x36
80x45
96x54
112x63
128x72
144x81
160x90
176x99
192x108
208x117
224x126
240x135
256x144
272x153
288x162
304x171
320x180
336x189
352x198
368x207
384x216
400x225
416x234
432x243
448x252
464x261
480x270
496x279
512x288
528x297
544x306
560x315
576x324
592x333
608x342
624x351
640x360
656x369
672x378
688x387
704x396
720x405
736x414
752x423
768x432
784x441
800x450
816x459
832x468
848x477
864x486
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928x522
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976x549
992x558
1008x567
1024x576
1040x585
1056x594
1072x603
1088x612
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1120x630
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1200x675
1216x684
1232x693
1248x702
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1280x720
1296x729
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1344x756
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1872x1053
1888x1062
1904x1071
1920x1080
1936x1089
1952x1098
1968x1107
1984x1116
2000x1125
2016x1134
2032x1143
2048x1152
2064x1161
2080x1170
2096x1179
2112x1188
2128x1197
2144x1206
2160x1215
2176x1224
2192x1233
2208x1242
2224x1251
2240x1260
2256x1269
2272x1278
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2304x1296
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3168x1782
3184x1791
3200x1800
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3408x1917
3424x1926
3440x1935
3456x1944
3472x1953
3488x1962
3504x1971
3520x1980
3536x1989
3552x1998
3568x2007
3584x2016
3600x2025
3616x2034
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3648x2052
3664x2061
3680x2070
3696x2079
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3856x2169
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3936x2214
3952x2223
3968x2232
3984x2241