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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 22 |
| 5 | 63 |
| 6 | 145 |
| 7 | 288 |
| 8 | 516 |
| 9 | 857 |
| 10 | 1343 |
| 11 | 2010 |
| 12 | 2898 |
| 13 | 4051 |
| 14 | 5517 |
| 15 | 7348 |
| 16 | 9600 |
| 17 | 12333 |
| 18 | 15611 |
| 19 | 19502 |
| 20 | 24078 |
| 21 | 29415 |
| 22 | 35593 |
| 23 | 42696 |
| 24 | 50812 |
| 25 | 60033 |
| 26 | 70455 |
| 27 | 82178 |
| 28 | 95306 |
| 29 | 109947 |
| 30 | 126213 |
| 31 | 144220 |
| 32 | 164088 |
| 33 | 185941 |
| 34 | 209907 |
| 35 | 236118 |
| 36 | 264710 |
| 37 | 295823 |
| 38 | 329601 |
| 39 | 366192 |
[1,2,6,22,63,145,288,516,857,1343,2010,2898,4051, 5517,7348,9600,12333,15611,19502,24078,29415, 35593,42696,50812,60033,70455,82178,95306,109947, 126213,144220,164088,185941,209907,236118,264710, 295823,329601,366192] |