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A000439 as a simple table
| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 30 |
| 3 | 69 |
| 4 | 133 |
| 5 | 230 |
| 6 | 369 |
| 7 | 560 |
| 8 | 814 |
| 9 | 1143 |
| 10 | 1560 |
| 11 | 2079 |
| 12 | 2715 |
| 13 | 3484 |
| 14 | 4403 |
| 15 | 5490 |
| 16 | 6764 |
| 17 | 8245 |
| 18 | 9954 |
| 19 | 11913 |
| 20 | 14145 |
| 21 | 16674 |
| 22 | 19525 |
| 23 | 22724 |
| 24 | 26298 |
| 25 | 30275 |
| 26 | 34684 |
| 27 | 39555 |
| 28 | 44919 |
| 29 | 50808 |
| 30 | 57255 |
| 31 | 64294 |
| 32 | 71960 |
| 33 | 80289 |
| 34 | 89318 |
| 35 | 99085 |
| 36 | 109629 |
| 37 | 120990 |
| 38 | 133209 |
| 39 | 146328 |
| 40 | 160390 |
| 41 | 175439 |
| 42 | 191520 |
| 43 | 208679 |
[9,30,69,133,230,369,560,814,1143,1560,2079,2715, 3484,4403,5490,6764,8245,9954,11913,14145,16674, 19525,22724,26298,30275,34684,39555,44919,50808, 57255,64294,71960,80289,89318,99085,109629,120990, 133209,146328,160390,175439,191520,208679] |