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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 9 |
| 5 | 14 |
| 6 | 19 |
| 7 | 24 |
| 8 | 45 |
| 9 | 75 |
| 10 | 105 |
| 11 | 135 |
| 12 | 229 |
| 13 | 359 |
| 14 | 503 |
| 15 | 647 |
| 16 | 1047 |
| 17 | 1591 |
| 18 | 2272 |
| 19 | 2972 |
| 20 | 4696 |
| 21 | 6996 |
| 22 | 9844 |
| 23 | 12894 |
| 24 | 20064 |
| 25 | 29538 |
| 26 | 41204 |
| 27 | 54407 |
| 28 | 84457 |
| 29 | 123723 |
| 30 | 171757 |
| 31 | 225939 |
| 32 | 348643 |
| 33 | 508693 |
| 34 | 703815 |
| 35 | 923529 |
| 36 | 1423892 |
| 37 | 2076942 |
| 38 | 2870977 |
| 39 | 3763380 |
| 40 | 5778379 |
| 41 | 8414332 |
| 42 | 11621307 |
[1,1,1,4,9,14,19,24,45,75,105,135,229,359,503,647, 1047,1591,2272,2972,4696,6996,9844,12894,20064, 29538,41204,54407,84457,123723,171757,225939, 348643,508693,703815,923529,1423892,2076942, 2870977,3763380,5778379,8414332,11621307] |