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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 9 |
| 5 | 19 |
| 6 | 38 |
| 7 | 77 |
| 8 | 154 |
| 9 | 308 |
| 10 | 617 |
| 11 | 1234 |
| 12 | 2468 |
| 13 | 4937 |
| 14 | 9875 |
| 15 | 19750 |
| 16 | 39501 |
| 17 | 79003 |
| 18 | 158006 |
| 19 | 316012 |
| 20 | 632025 |
| 21 | 1264050 |
| 22 | 2528101 |
| 23 | 5056203 |
| 24 | 10112406 |
| 25 | 20224813 |
| 26 | 40449626 |
| 27 | 80899252 |
| 28 | 161798505 |
| 29 | 323597011 |
| 30 | 647194022 |
| 31 | 1294388045 |
| 32 | 2588776091 |
| 33 | 5177552182 |
| 34 | 10355104365 |
[0,1,2,4,9,19,38,77,154,308,617,1234,2468,4937, 9875,19750,39501,79003,158006,316012,632025, 1264050,2528101,5056203,10112406,20224813, 40449626,80899252,161798505,323597011,647194022, 1294388045,2588776091,5177552182,10355104365] |