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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 6 |
| 4 | 9 |
| 5 | 17 |
| 6 | 42 |
| 7 | 92 |
| 8 | 131 |
| 9 | 307 |
| 10 | 650 |
| 11 | 1024 |
| 12 | 2238 |
| 13 | 4164 |
| 14 | 8226 |
| 15 | 17384 |
| 16 | 33197 |
| 17 | 67167 |
| 18 | 133549 |
| 19 | 269119 |
| 20 | 525974 |
| 21 | 1055175 |
| 22 | 2111641 |
| 23 | 4213053 |
| 24 | 8444257 |
| 25 | 16783217 |
| 26 | 33601813 |
| 27 | 67405064 |
| 28 | 134239260 |
| 29 | 268711604 |
| 30 | 538400994 |
| 31 | 1076155844 |
| 32 | 2152693259 |
| 33 | 4299075300 |
| 34 | 8594396933 |
| 35 | 17203509931 |
[0,2,6,9,17,42,92,131,307,650,1024,2238,4164,8226, 17384,33197,67167,133549,269119,525974,1055175, 2111641,4213053,8444257,16783217,33601813, 67405064,134239260,268711604,538400994,1076155844, 2152693259,4299075300,8594396933,17203509931] |