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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 5 |
| 3 | 12 |
| 4 | 27 |
| 5 | 57 |
| 6 | 117 |
| 7 | 242 |
| 8 | 493 |
| 9 | 994 |
| 10 | 2013 |
| 11 | 4042 |
| 12 | 8101 |
| 13 | 16266 |
| 14 | 32613 |
| 15 | 65306 |
| 16 | 130789 |
| 17 | 261634 |
| 18 | 523613 |
| 19 | 1047562 |
| 20 | 2096021 |
| 21 | 4192650 |
| 22 | 8385637 |
| 23 | 16773402 |
| 24 | 33549669 |
| 25 | 67101850 |
| 26 | 134206309 |
| 27 | 268420250 |
| 28 | 536850437 |
| 29 | 1073715098 |
| 30 | 2147434581 |
| 31 | 4294918058 |
| 32 | 8589852741 |
[1,2,5,12,27,57,117,242,493,994,2013,4042,8101, 16266,32613,65306,130789,261634,523613,1047562, 2096021,4192650,8385637,16773402,33549669, 67101850,134206309,268420250,536850437,1073715098, 2147434581,4294918058,8589852741] |