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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 21 |
| 5 | 25 |
| 6 | 32 |
| 7 | 174 |
| 8 | 400 |
| 9 | 918 |
| 10 | 960 |
| 11 | 971 |
| 12 | 987 |
| 13 | 2374 |
| 14 | 5928 |
| 15 | 5935 |
| 16 | 5942 |
| 17 | 5977 |
| 18 | 14838 |
| 19 | 37259 |
| 20 | 37282 |
| 21 | 94154 |
| 22 | 238309 |
| 23 | 1556445 |
| 24 | 4004112 |
| 25 | 10308825 |
| 26 | 10308837 |
| 27 | 10309843 |
| 28 | 10309906 |
| 29 | 26627152 |
| 30 | 68912912 |
| 31 | 68913663 |
| 32 | 68913687 |
| 33 | 68914102 |
| 34 | 68915077 |
| 35 | 68915098 |
| 36 | 68916054 |
[1,2,6,21,25,32,174,400,918,960,971,987,2374,5928, 5935,5942,5977,14838,37259,37282,94154,238309, 1556445,4004112,10308825,10308837,10309843, 10309906,26627152,68912912,68913663,68913687, 68914102,68915077,68915098,68916054] |