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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 18 |
| 3 | 644 |
| 4 | 1298 |
| 5 | 6662 |
| 6 | 14948 |
| 7 | 29102 |
| 8 | 77579 |
| 9 | 102044 |
| 10 | 181838 |
| 11 | 367022 |
| 12 | 545828 |
| 13 | 754652 |
| 14 | 1095254 |
| 15 | 1985807 |
| 16 | 1875902 |
| 17 | 2672339 |
| 18 | 4102958 |
| 19 | 4851593 |
| 20 | 7444799 |
| 21 | 6826874 |
| 22 | 10715858 |
| 23 | 16398674 |
| 24 | 18805058 |
| 25 | 23502134 |
| 26 | 31500614 |
| 27 | 34967159 |
| 28 | 41824499 |
| 29 | 47158793 |
| 30 | 54659384 |
| 31 | 67269347 |
| 32 | 83885588 |
[1,3,18,644,1298,6662,14948,29102,77579,102044, 181838,367022,545828,754652,1095254,1985807, 1875902,2672339,4102958,4851593,7444799,6826874, 10715858,16398674,18805058,23502134,31500614, 34967159,41824499,47158793,54659384,67269347, 83885588] |