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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 4 |
| 5 | 6 |
| 6 | 10 |
| 7 | 11 |
| 8 | 17 |
| 9 | 28 |
| 10 | 38 |
| 11 | 66 |
| 12 | 104 |
| 13 | 142 |
| 14 | 180 |
| 15 | 197 |
| 16 | 377 |
| 17 | 574 |
| 18 | 612 |
| 19 | 1186 |
| 20 | 1383 |
| 21 | 2569 |
| 22 | 3952 |
| 23 | 5335 |
| 24 | 6718 |
| 25 | 8101 |
| 26 | 9484 |
| 27 | 10867 |
| 28 | 12250 |
| 29 | 12862 |
| 30 | 25112 |
| 31 | 35979 |
| 32 | 48841 |
| 33 | 73953 |
| 34 | 122794 |
| 35 | 171635 |
| 36 | 220476 |
| 37 | 256455 |
| 38 | 305296 |
| 39 | 525772 |
| 40 | 831068 |
| 41 | 1356840 |
| 42 | 2187908 |
| 43 | 3544748 |
[1,1,2,2,4,6,10,11,17,28,38,66,104,142,180,197, 377,574,612,1186,1383,2569,3952,5335,6718,8101, 9484,10867,12250,12862,25112,35979,48841,73953, 122794,171635,220476,256455,305296,525772,831068, 1356840,2187908,3544748] |