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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 4 |
| 4 | 6 |
| 5 | 8 |
| 6 | 14 |
| 7 | 20 |
| 8 | 36 |
| 9 | 60 |
| 10 | 108 |
| 11 | 188 |
| 12 | 352 |
| 13 | 632 |
| 14 | 1182 |
| 15 | 2192 |
| 16 | 4116 |
| 17 | 7712 |
| 18 | 14602 |
| 19 | 27596 |
| 20 | 52488 |
| 21 | 99880 |
| 22 | 190746 |
| 23 | 364724 |
| 24 | 699252 |
| 25 | 1342184 |
| 26 | 2581428 |
| 27 | 4971068 |
| 28 | 9587580 |
| 29 | 18512792 |
| 30 | 35792568 |
| 31 | 69273668 |
| 32 | 134219796 |
| 33 | 260301176 |
| 34 | 505294128 |
| 35 | 981706832 |
[1,2,3,4,6,8,14,20,36,60,108,188,352,632,1182, 2192,4116,7712,14602,27596,52488,99880,190746, 364724,699252,1342184,2581428,4971068,9587580, 18512792,35792568,69273668,134219796,260301176, 505294128,981706832] |