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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 21 |
| 5 | 44 |
| 6 | 194 |
| 7 | 447 |
| 8 | 2059 |
| 9 | 5054 |
| 10 | 23760 |
| 11 | 60785 |
| 12 | 290185 |
| 13 | 765374 |
| 14 | 3688939 |
| 15 | 9954865 |
| 16 | 48328461 |
| 17 | 132793952 |
| 18 | 648110850 |
| 19 | 1806922951 |
| 20 | 8854881499 |
| 21 | 24984984772 |
| 22 | 122828350857 |
| 23 | 350072375310 |
| 24 | 1725363761048 |
| 25 | 4959679647599 |
| 26 | 24494419473314 |
| 27 | 70931380591142 |
| 28 | 350897963505759 |
| 29 | 1022670848686661 |
| 30 | 5066201743368781 |
[1,1,3,5,21,44,194,447,2059,5054,23760,60785, 290185,765374,3688939,9954865,48328461,132793952, 648110850,1806922951,8854881499,24984984772, 122828350857,350072375310,1725363761048, 4959679647599,24494419473314,70931380591142, 350897963505759,1022670848686661,5066201743368781] |