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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 5 |
| 2 | 14 |
| 3 | 34 |
| 4 | 124 |
| 5 | 260 |
| 6 | 1016 |
| 7 | 2056 |
| 8 | 8176 |
| 9 | 16400 |
| 10 | 65504 |
| 11 | 131104 |
| 12 | 524224 |
| 13 | 1048640 |
| 14 | 4194176 |
| 15 | 8388736 |
| 16 | 33554176 |
| 17 | 67109120 |
| 18 | 268434944 |
| 19 | 536871424 |
| 20 | 2147482624 |
| 21 | 4294968320 |
| 22 | 17179867136 |
| 23 | 34359740416 |
| 24 | 137438949376 |
| 25 | 274877911040 |
[1,5,14,34,124,260,1016,2056,8176,16400,65504, 131104,524224,1048640,4194176,8388736,33554176, 67109120,268434944,536871424,2147482624, 4294968320,17179867136,34359740416,137438949376, 274877911040] |