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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 14 |
| 5 | 24 |
| 6 | 44 |
| 7 | 83 |
| 8 | 156 |
| 9 | 292 |
| 10 | 552 |
| 11 | 1052 |
| 12 | 2012 |
| 13 | 3853 |
| 14 | 7400 |
| 15 | 14255 |
| 16 | 27528 |
| 17 | 53255 |
| 18 | 103212 |
| 19 | 200379 |
| 20 | 389648 |
| 21 | 758750 |
| 22 | 1479400 |
| 23 | 2887960 |
| 24 | 5643900 |
| 25 | 11040973 |
| 26 | 21619292 |
| 27 | 42369251 |
| 28 | 83101488 |
| 29 | 163113411 |
| 30 | 320383832 |
| 31 | 629695622 |
| 32 | 1238372630 |
| 33 | 2436774903 |
[1,2,4,8,14,24,44,83,156,292,552,1052,2012,3853, 7400,14255,27528,53255,103212,200379,389648, 758750,1479400,2887960,5643900,11040973,21619292, 42369251,83101488,163113411,320383832,629695622, 1238372630,2436774903] |