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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 11 |
| 5 | 20 |
| 6 | 38 |
| 7 | 67 |
| 8 | 119 |
| 9 | 211 |
| 10 | 398 |
| 11 | 830 |
| 12 | 1940 |
| 13 | 4902 |
| 14 | 12784 |
| 15 | 33165 |
| 16 | 84136 |
| 17 | 207240 |
| 18 | 495964 |
| 19 | 1157767 |
| 20 | 2654461 |
| 21 | 6029627 |
| 22 | 13704225 |
| 23 | 31463620 |
| 24 | 73498385 |
| 25 | 175220708 |
| 26 | 425631952 |
| 27 | 1048102141 |
| 28 | 2599306042 |
| 29 | 6453178098 |
| 30 | 15967452038 |
| 31 | 39281184601 |
| 32 | 96019973309 |
| 33 | 233425343306 |
| 34 | 565413231173 |
[1,3,5,11,20,38,67,119,211,398,830,1940,4902, 12784,33165,84136,207240,495964,1157767,2654461, 6029627,13704225,31463620,73498385,175220708, 425631952,1048102141,2599306042,6453178098, 15967452038,39281184601,96019973309,233425343306, 565413231173] |