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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 13 |
| 5 | 32 |
| 6 | 72 |
| 7 | 148 |
| 8 | 281 |
| 9 | 499 |
| 10 | 838 |
| 11 | 1343 |
| 12 | 2069 |
| 13 | 3082 |
| 14 | 4460 |
| 15 | 6294 |
| 16 | 8689 |
| 17 | 11765 |
| 18 | 15658 |
| 19 | 20521 |
| 20 | 26525 |
| 21 | 33860 |
| 22 | 42736 |
| 23 | 53384 |
| 24 | 66057 |
| 25 | 81031 |
| 26 | 98606 |
| 27 | 119107 |
| 28 | 142885 |
| 29 | 170318 |
| 30 | 201812 |
| 31 | 237802 |
| 32 | 278753 |
| 33 | 325161 |
| 34 | 377554 |
| 35 | 436493 |
| 36 | 502573 |
| 37 | 576424 |
| 38 | 658712 |
| 39 | 750140 |
| 40 | 851449 |
[1,1,2,5,13,32,72,148,281,499,838,1343,2069,3082, 4460,6294,8689,11765,15658,20521,26525,33860, 42736,53384,66057,81031,98606,119107,142885, 170318,201812,237802,278753,325161,377554,436493, 502573,576424,658712,750140,851449] |