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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 4 |
| 7 | 6 |
| 8 | 8 |
| 9 | 9 |
| 10 | 15 |
| 11 | 21 |
| 12 | 26 |
| 13 | 38 |
| 14 | 51 |
| 15 | 69 |
| 16 | 89 |
| 17 | 119 |
| 18 | 149 |
| 19 | 197 |
| 20 | 261 |
| 21 | 356 |
| 22 | 447 |
| 23 | 601 |
| 24 | 781 |
| 25 | 1003 |
| 26 | 1293 |
| 27 | 1714 |
| 28 | 2228 |
| 29 | 2931 |
| 30 | 3697 |
| 31 | 4843 |
| 32 | 6258 |
| 33 | 8187 |
| 34 | 10273 |
| 35 | 13445 |
| 36 | 16894 |
| 37 | 21953 |
| 38 | 27469 |
| 39 | 35842 |
| 40 | 45410 |
| 41 | 58948 |
| 42 | 73939 |
| 43 | 95199 |
| 44 | 120593 |
| 45 | 154510 |
| 46 | 192995 |
| 47 | 247966 |
| 48 | 312642 |
[1,1,1,1,2,3,4,6,8,9,15,21,26,38,51,69,89,119,149, 197,261,356,447,601,781,1003,1293,1714,2228,2931, 3697,4843,6258,8187,10273,13445,16894,21953,27469, 35842,45410,58948,73939,95199,120593,154510, 192995,247966,312642] |