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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 3 |
| 4 | 15 |
| 5 | 46 |
| 6 | 107 |
| 7 | 213 |
| 8 | 383 |
| 9 | 636 |
| 10 | 997 |
| 11 | 1492 |
| 12 | 2151 |
| 13 | 3005 |
| 14 | 4092 |
| 15 | 5447 |
| 16 | 7114 |
| 17 | 9135 |
| 18 | 11559 |
| 19 | 14433 |
| 20 | 17814 |
| 21 | 21753 |
| 22 | 26313 |
| 23 | 31552 |
| 24 | 37538 |
| 25 | 44334 |
| 26 | 52016 |
| 27 | 60651 |
| 28 | 70321 |
| 29 | 81100 |
| 30 | 93075 |
| 31 | 106325 |
| 32 | 120945 |
| 33 | 137018 |
| 34 | 154645 |
| 35 | 173916 |
| 36 | 194937 |
| 37 | 217803 |
| 38 | 242628 |
| 39 | 269511 |
[1,7,3,15,46,107,213,383,636,997,1492,2151,3005, 4092,5447,7114,9135,11559,14433,17814,21753,26313, 31552,37538,44334,52016,60651,70321,81100,93075, 106325,120945,137018,154645,173916,194937,217803, 242628,269511] |