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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 14 |
| 4 | 37 |
| 5 | 90 |
| 6 | 213 |
| 7 | 490 |
| 8 | 1109 |
| 9 | 2474 |
| 10 | 5461 |
| 11 | 11946 |
| 12 | 25941 |
| 13 | 55978 |
| 14 | 120149 |
| 15 | 256682 |
| 16 | 546133 |
| 17 | 1157802 |
| 18 | 2446677 |
| 19 | 5155498 |
| 20 | 10835285 |
| 21 | 22719146 |
| 22 | 47535445 |
| 23 | 99265194 |
| 24 | 206918997 |
| 25 | 430615210 |
| 26 | 894784853 |
| 27 | 1856678570 |
| 28 | 3847574869 |
| 29 | 7963585194 |
[1,5,14,37,90,213,490,1109,2474,5461,11946,25941, 55978,120149,256682,546133,1157802,2446677, 5155498,10835285,22719146,47535445,99265194, 206918997,430615210,894784853,1856678570, 3847574869,7963585194] |