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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 7 |
| 3 | 14 |
| 4 | 27 |
| 5 | 49 |
| 6 | 84 |
| 7 | 141 |
| 8 | 230 |
| 9 | 364 |
| 10 | 567 |
| 11 | 867 |
| 12 | 1302 |
| 13 | 1932 |
| 14 | 2829 |
| 15 | 4091 |
| 16 | 5859 |
| 17 | 8309 |
| 18 | 11675 |
| 19 | 16275 |
| 20 | 22513 |
| 21 | 30914 |
| 22 | 42174 |
| 23 | 57176 |
| 24 | 77049 |
| 25 | 103263 |
| 26 | 137669 |
| 27 | 182616 |
| 28 | 241110 |
| 29 | 316910 |
| 30 | 414750 |
| 31 | 540603 |
| 32 | 701903 |
| 33 | 907928 |
| 34 | 1170261 |
| 35 | 1503238 |
| 36 | 1924607 |
| 37 | 2456349 |
[1,3,7,14,27,49,84,141,230,364,567,867,1302,1932, 2829,4091,5859,8309,11675,16275,22513,30914,42174, 57176,77049,103263,137669,182616,241110,316910, 414750,540603,701903,907928,1170261,1503238, 1924607,2456349] |