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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 4 |
| 6 | 7 |
| 7 | 60 |
| 8 | 67 |
| 9 | 395 |
| 10 | 462 |
| 11 | 857 |
| 12 | 1319 |
| 13 | 16685 |
| 14 | 84744 |
| 15 | 101429 |
| 16 | 186173 |
| 17 | 1032294 |
| 18 | 1218467 |
| 19 | 15653898 |
| 20 | 16872365 |
| 21 | 32526263 |
| 22 | 49398628 |
| 23 | 81924891 |
| 24 | 213248410 |
| 25 | 295173301 |
| 26 | 508421711 |
| 27 | 803595012 |
| 28 | 1312016723 |
| 29 | 3427628458 |
| 30 | 11594902097 |
| 31 | 26617432652 |
| 32 | 64829767401 |
[0,1,1,3,4,7,60,67,395,462,857,1319,16685,84744, 101429,186173,1032294,1218467,15653898,16872365, 32526263,49398628,81924891,213248410,295173301, 508421711,803595012,1312016723,3427628458, 11594902097,26617432652,64829767401] |