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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 19 |
| 5 | 39 |
| 6 | 145 |
| 7 | 321 |
| 8 | 1255 |
| 9 | 2963 |
| 10 | 11461 |
| 11 | 27917 |
| 12 | 110259 |
| 13 | 277159 |
| 14 | 1087913 |
| 15 | 2782553 |
| 16 | 11042671 |
| 17 | 28776715 |
| 18 | 113756413 |
| 19 | 299773221 |
| 20 | 1192805707 |
| 21 | 3182466959 |
| 22 | 12629930193 |
| 23 | 33962881873 |
| 24 | 135354541927 |
| 25 | 367196191059 |
| 26 | 1460721651845 |
| 27 | 3985972843421 |
| 28 | 15901830280195 |
| 29 | 43678504771607 |
| 30 | 174021430400217 |
| 31 | 480174205835977 |
[1,1,3,5,19,39,145,321,1255,2963,11461,27917, 110259,277159,1087913,2782553,11042671,28776715, 113756413,299773221,1192805707,3182466959, 12629930193,33962881873,135354541927,367196191059, 1460721651845,3985972843421,15901830280195, 43678504771607,174021430400217,480174205835977] |