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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 5 |
| 3 | 11 |
| 4 | 16 |
| 5 | 27 |
| 6 | 43 |
| 7 | 70 |
| 8 | 113 |
| 9 | 522 |
| 10 | 1679 |
| 11 | 2201 |
| 12 | 21488 |
| 13 | 23689 |
| 14 | 613713 |
| 15 | 637402 |
| 16 | 6350331 |
| 17 | 6987733 |
| 18 | 27313530 |
| 19 | 116241853 |
| 20 | 143555383 |
| 21 | 259797236 |
| 22 | 403352619 |
| 23 | 663149855 |
| 24 | 1066502474 |
| 25 | 2796154803 |
| 26 | 12251121686 |
| 27 | 15047276489 |
| 28 | 794709499114 |
| 29 | 809756775603 |
[1,1,5,11,16,27,43,70,113,522,1679,2201,21488, 23689,613713,637402,6350331,6987733,27313530, 116241853,143555383,259797236,403352619,663149855, 1066502474,2796154803,12251121686,15047276489, 794709499114,809756775603] |