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| n | a(n) |
|---|---|
| 1 | 26 |
| 2 | 676 |
| 3 | 2812 |
| 4 | 11230 |
| 5 | 49122 |
| 6 | 195160 |
| 7 | 759482 |
| 8 | 3023026 |
| 9 | 12097348 |
| 10 | 48545886 |
| 11 | 196189502 |
| 12 | 797024450 |
| 13 | 3248315568 |
| 14 | 13275903862 |
| 15 | 54380462964 |
| 16 | 223097563548 |
| 17 | 916323381914 |
| 18 | 3766936219010 |
| 19 | 15495582791380 |
| 20 | 63772217446234 |
[26,676,2812,11230,49122,195160,759482,3023026, 12097348,48545886,196189502,797024450,3248315568, 13275903862,54380462964,223097563548,916323381914, 3766936219010,15495582791380,63772217446234] |