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| n | a(n) |
|---|---|
| 1 | 16 |
| 2 | 256 |
| 3 | 1723 |
| 4 | 6454 |
| 5 | 18980 |
| 6 | 49561 |
| 7 | 119150 |
| 8 | 267643 |
| 9 | 567197 |
| 10 | 1142224 |
| 11 | 2198273 |
| 12 | 4062420 |
| 13 | 7238132 |
| 14 | 12477929 |
| 15 | 20877528 |
| 16 | 33995513 |
| 17 | 54002935 |
| 18 | 83867606 |
| 19 | 127578211 |
| 20 | 190413722 |
| 21 | 279263958 |
| 22 | 403007495 |
| 23 | 572953490 |
| 24 | 803354343 |
| 25 | 1111996481 |
| 26 | 1520876908 |
[16,256,1723,6454,18980,49561,119150,267643, 567197,1142224,2198273,4062420,7238132,12477929, 20877528,33995513,54002935,83867606,127578211, 190413722,279263958,403007495,572953490,803354343, 1111996481,1520876908] |