To save you all the trouble of building the table yourselves, here is the standard D&D XP table from level 1 to 50, listing the minimum XP required to attain that level.
| Level | Min. XP |
|---|---|
| 1 | 0 |
| 2 | 1000 |
| 3 | 3000 |
| 4 | 6000 |
| 5 | 10000 |
| 6 | 15000 |
| 7 | 21000 |
| 8 | 28000 |
| 9 | 36000 |
| 10 | 45000 |
| 11 | 55000 |
| 12 | 66000 |
| 13 | 78000 |
| 14 | 91000 |
| 15 | 105000 |
| 16 | 120000 |
| 17 | 136000 |
| 18 | 153000 |
| 19 | 171000 |
| 20 | 190000 |
| 21 | 210000 |
| 22 | 231000 |
| 23 | 253000 |
| 24 | 276000 |
| 25 | 300000 |
| 26 | 325000 |
| 27 | 351000 |
| 28 | 378000 |
| 29 | 406000 |
| 30 | 435000 |
| 31 | 465000 |
| 32 | 496000 |
| 33 | 528000 |
| 34 | 561000 |
| 35 | 595000 |
| 36 | 630000 |
| 37 | 666000 |
| 38 | 703000 |
| 39 | 741000 |
| 40 | 780000 |
| 41 | 820000 |
| 42 | 861000 |
| 43 | 903000 |
| 44 | 946000 |
| 45 | 990000 |
| 46 | 1035000 |
| 47 | 1081000 |
| 48 | 1128000 |
| 49 | 1176000 |
| 50 | 1225000 |