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| n | a(n) |
|---|---|
| 9 | 0 |
| 10 | 10 |
| 11 | 21 |
| 12 | 33 |
| 13 | 46 |
| 14 | 60 |
| 15 | 75 |
| 16 | 91 |
| 17 | 108 |
| 18 | 126 |
| 19 | 145 |
| 20 | 165 |
| 21 | 186 |
| 22 | 208 |
| 23 | 231 |
| 24 | 255 |
| 25 | 280 |
| 26 | 306 |
| 27 | 333 |
| 28 | 361 |
| 29 | 390 |
| 30 | 420 |
| 31 | 451 |
| 32 | 483 |
| 33 | 516 |
| 34 | 550 |
| 35 | 585 |
| 36 | 621 |
| 37 | 658 |
| 38 | 696 |
| 39 | 735 |
| 40 | 775 |
| 41 | 816 |
| 42 | 858 |
| 43 | 901 |
| 44 | 945 |
| 45 | 990 |
| 46 | 1036 |
| 47 | 1083 |
| 48 | 1131 |
| 49 | 1180 |
| 50 | 1230 |
| 51 | 1281 |
| 52 | 1333 |
| 53 | 1386 |
| 54 | 1440 |
| 55 | 1495 |
| 56 | 1551 |
| 57 | 1608 |
| 58 | 1666 |
[0,10,21,33,46,60,75,91,108,126,145,165,186,208, 231,255,280,306,333,361,390,420,451,483,516,550, 585,621,658,696,735,775,816,858,901,945,990,1036, 1083,1131,1180,1230,1281,1333,1386,1440,1495,1551, 1608,1666] |