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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 14 |
| 4 | 35 |
| 5 | 74 |
| 6 | 150 |
| 7 | 280 |
| 8 | 505 |
| 9 | 875 |
| 10 | 1470 |
| 11 | 2402 |
| 12 | 3850 |
| 13 | 6034 |
| 14 | 9300 |
| 15 | 14120 |
| 16 | 21131 |
| 17 | 31220 |
| 18 | 45619 |
| 19 | 65930 |
| 20 | 94374 |
| 21 | 133892 |
| 22 | 188350 |
| 23 | 262904 |
| 24 | 364350 |
| 25 | 501459 |
| 26 | 685762 |
| 27 | 932200 |
| 28 | 1259944 |
| 29 | 1693750 |
| 30 | 2265380 |
| 31 | 3015152 |
| 32 | 3994585 |
| 33 | 5268988 |
| 34 | 6920700 |
| 35 | 9053748 |
| 36 | 11798873 |
| 37 | 15319610 |
| 38 | 19820738 |
| 39 | 25557560 |
[1,5,14,35,74,150,280,505,875,1470,2402,3850,6034, 9300,14120,21131,31220,45619,65930,94374,133892, 188350,262904,364350,501459,685762,932200,1259944, 1693750,2265380,3015152,3994585,5268988,6920700, 9053748,11798873,15319610,19820738,25557560] |