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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 26 |
| 3 | 115 |
| 4 | 308 |
| 5 | 645 |
| 6 | 1166 |
| 7 | 1911 |
| 8 | 2920 |
| 9 | 4233 |
| 10 | 5890 |
| 11 | 7931 |
| 12 | 10396 |
| 13 | 13325 |
| 14 | 16758 |
| 15 | 20735 |
| 16 | 25296 |
| 17 | 30481 |
| 18 | 36330 |
| 19 | 42883 |
| 20 | 50180 |
| 21 | 58261 |
| 22 | 67166 |
| 23 | 76935 |
| 24 | 87608 |
| 25 | 99225 |
| 26 | 111826 |
| 27 | 125451 |
| 28 | 140140 |
| 29 | 155933 |
| 30 | 172870 |
| 31 | 190991 |
| 32 | 210336 |
[1,26,115,308,645,1166,1911,2920,4233,5890,7931, 10396,13325,16758,20735,25296,30481,36330,42883, 50180,58261,67166,76935,87608,99225,111826,125451, 140140,155933,172870,190991,210336] |