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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 15 |
| 4 | 17 |
| 5 | 32 |
| 6 | 49 |
| 7 | 277 |
| 8 | 5035 |
| 9 | 5312 |
| 10 | 31595 |
| 11 | 68502 |
| 12 | 100097 |
| 13 | 168599 |
| 14 | 774493 |
| 15 | 943092 |
| 16 | 1717585 |
| 17 | 4378262 |
| 18 | 23608895 |
| 19 | 27987157 |
| 20 | 527377721 |
| 21 | 2664875762 |
| 22 | 3192253483 |
| 23 | 5857129245 |
| 24 | 9049382728 |
| 25 | 69202808341 |
| 26 | 78252191069 |
| 27 | 147454999410 |
| 28 | 8335732158029 |
| 29 | 8483187157439 |
[1,1,2,15,17,32,49,277,5035,5312,31595,68502, 100097,168599,774493,943092,1717585,4378262, 23608895,27987157,527377721,2664875762,3192253483, 5857129245,9049382728,69202808341,78252191069, 147454999410,8335732158029,8483187157439] |