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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 8 |
| 3 | 27 |
| 4 | 60 |
| 5 | 123 |
| 6 | 232 |
| 7 | 436 |
| 8 | 768 |
| 9 | 1325 |
| 10 | 2237 |
| 11 | 3731 |
| 12 | 6164 |
| 13 | 10120 |
| 14 | 16540 |
| 15 | 26949 |
| 16 | 43813 |
| 17 | 71123 |
| 18 | 115336 |
| 19 | 186900 |
| 20 | 302720 |
| 21 | 490149 |
| 22 | 793445 |
| 23 | 1284219 |
| 24 | 2078340 |
| 25 | 3363343 |
| 26 | 5442524 |
| 27 | 8806767 |
| 28 | 14250252 |
| 29 | 23058043 |
| 30 | 37309384 |
| 31 | 60368583 |
| 32 | 97679192 |
| 33 | 158049071 |
| 34 | 255729632 |
[1,3,8,27,60,123,232,436,768,1325,2237,3731,6164, 10120,16540,26949,43813,71123,115336,186900, 302720,490149,793445,1284219,2078340,3363343, 5442524,8806767,14250252,23058043,37309384, 60368583,97679192,158049071,255729632] |