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A181844 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 12 |
| 5 | 23 |
| 6 | 38 |
| 7 | 73 |
| 8 | 118 |
| 9 | 198 |
| 10 | 318 |
| 11 | 530 |
| 12 | 819 |
| 13 | 1298 |
| 14 | 1974 |
| 15 | 2975 |
| 16 | 4516 |
| 17 | 6698 |
| 18 | 9980 |
| 19 | 14550 |
| 20 | 21186 |
| 21 | 30304 |
| 22 | 43503 |
| 23 | 62030 |
| 24 | 87908 |
| 25 | 123292 |
| 26 | 172543 |
| 27 | 239720 |
| 28 | 331688 |
| 29 | 458198 |
| 30 | 629376 |
| 31 | 860332 |
| 32 | 1168172 |
| 33 | 1583176 |
| 34 | 2138438 |
| 35 | 2876283 |
| 36 | 3859770 |
| 37 | 5159886 |
| 38 | 6863702 |
| 39 | 9112356 |
[1,1,3,6,12,23,38,73,118,198,318,530,819,1298, 1974,2975,4516,6698,9980,14550,21186,30304,43503, 62030,87908,123292,172543,239720,331688,458198, 629376,860332,1168172,1583176,2138438,2876283, 3859770,5159886,6863702,9112356] |