| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 13 |
| 6 | 22 |
| 7 | 39 |
| 8 | 65 |
| 9 | 104 |
| 10 | 160 |
| 11 | 263 |
| 12 | 413 |
| 13 | 646 |
| 14 | 975 |
| 15 | 1479 |
| 16 | 2198 |
| 17 | 3354 |
| 18 | 5017 |
| 19 | 7389 |
| 20 | 10770 |
| 21 | 15721 |
| 22 | 22668 |
| 23 | 32663 |
| 24 | 47200 |
| 25 | 67761 |
| 26 | 96389 |
| 27 | 135977 |
| 28 | 191431 |
| 29 | 268805 |
| 30 | 376211 |
| 31 | 523692 |
| 32 | 730301 |
| 33 | 1014029 |
| 34 | 1401553 |
| 35 | 1925074 |
| 36 | 2638522 |
| 37 | 3608182 |
| 38 | 4924194 |
| 39 | 6694070 |
| 40 | 9088239 |
| 41 | 12323707 |
| 42 | 16668255 |
[1,1,2,4,8,13,22,39,65,104,160,263,413,646,975, 1479,2198,3354,5017,7389,10770,15721,22668,32663, 47200,67761,96389,135977,191431,268805,376211, 523692,730301,1014029,1401553,1925074,2638522, 3608182,4924194,6694070,9088239,12323707,16668255] |