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A239920 as a simple table
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 21 |
| 4 | 30 |
| 5 | 96 |
| 6 | 297 |
| 7 | 375 |
| 8 | 621 |
| 9 | 1359 |
| 10 | 1704 |
| 11 | 1749 |
| 12 | 1761 |
| 13 | 3696 |
| 14 | 3849 |
| 15 | 4467 |
| 16 | 8025 |
| 17 | 8646 |
| 18 | 9834 |
| 19 | 11352 |
| 20 | 15630 |
| 21 | 17397 |
| 22 | 17949 |
| 23 | 19575 |
| 24 | 20274 |
| 25 | 27087 |
| 26 | 28452 |
| 27 | 30504 |
| 28 | 32154 |
| 29 | 32307 |
| 30 | 33666 |
| 31 | 35670 |
| 32 | 36240 |
| 33 | 37785 |
| 34 | 37962 |
| 35 | 39927 |
| 36 | 40617 |
| 37 | 42987 |
| 38 | 44250 |
| 39 | 47559 |
| 40 | 49335 |
| 41 | 49599 |
[1,6,21,30,96,297,375,621,1359,1704,1749,1761, 3696,3849,4467,8025,8646,9834,11352,15630,17397, 17949,19575,20274,27087,28452,30504,32154,32307, 33666,35670,36240,37785,37962,39927,40617,42987, 44250,47559,49335,49599] |