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| n | a(n) |
|---|---|
| 4 | 14 |
| 5 | 46 |
| 6 | 176 |
| 7 | 620 |
| 8 | 2218 |
| 9 | 7938 |
| 10 | 28572 |
| 11 | 103384 |
| 12 | 376056 |
| 13 | 1374680 |
| 14 | 5048348 |
| 15 | 18618290 |
| 16 | 68932582 |
| 17 | 256133188 |
| 18 | 954856744 |
| 19 | 3570492960 |
| 20 | 13388550056 |
| 21 | 50334109160 |
| 22 | 189684561610 |
| 23 | 716420218810 |
| 24 | 2711456910222 |
| 25 | 10281958081812 |
| 26 | 39059990775594 |
| 27 | 148635185291644 |
| 28 | 566498545019834 |
| 29 | 2162330791492290 |
| 30 | 8265205867169156 |
[14,46,176,620,2218,7938,28572,103384,376056, 1374680,5048348,18618290,68932582,256133188, 954856744,3570492960,13388550056,50334109160, 189684561610,716420218810,2711456910222, 10281958081812,39059990775594,148635185291644, 566498545019834,2162330791492290,8265205867169156] |