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A282084 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 20 |
| 3 | 85 |
| 4 | 255 |
| 5 | 636 |
| 6 | 1484 |
| 7 | 3235 |
| 8 | 6470 |
| 9 | 12120 |
| 10 | 21816 |
| 11 | 37854 |
| 12 | 63090 |
| 13 | 101640 |
| 14 | 159720 |
| 15 | 245322 |
| 16 | 367983 |
| 17 | 540540 |
| 18 | 780780 |
| 19 | 1110395 |
| 20 | 1554553 |
| 21 | 2145572 |
| 22 | 2925780 |
| 23 | 3945045 |
| 24 | 5260060 |
| 25 | 6941168 |
| 26 | 9076912 |
| 27 | 11769100 |
| 28 | 15131700 |
| 29 | 19302480 |
| 30 | 24449808 |
| 31 | 30763812 |
| 32 | 38454765 |
| 33 | 47771700 |
[1,4,20,85,255,636,1484,3235,6470,12120,21816, 37854,63090,101640,159720,245322,367983,540540, 780780,1110395,1554553,2145572,2925780,3945045, 5260060,6941168,9076912,11769100,15131700, 19302480,24449808,30763812,38454765,47771700] |