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A000339 as a simple table
| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 5 |
| 4 | 18 |
| 5 | 45 |
| 6 | 100 |
| 7 | 185 |
| 8 | 323 |
| 9 | 522 |
| 10 | 804 |
| 11 | 1180 |
| 12 | 1687 |
| 13 | 2322 |
| 14 | 3139 |
| 15 | 4146 |
| 16 | 5377 |
| 17 | 6859 |
| 18 | 8645 |
| 19 | 10733 |
| 20 | 13203 |
| 21 | 16058 |
| 22 | 19356 |
| 23 | 23132 |
| 24 | 27460 |
| 25 | 32330 |
| 26 | 37846 |
| 27 | 44031 |
| 28 | 50954 |
| 29 | 58637 |
| 30 | 67203 |
| 31 | 76613 |
| 32 | 87021 |
| 33 | 98443 |
| 34 | 110951 |
| 35 | 124616 |
| 36 | 139526 |
| 37 | 155681 |
| 38 | 173246 |
| 39 | 192243 |
[1,5,18,45,100,185,323,522,804,1180,1687,2322, 3139,4146,5377,6859,8645,10733,13203,16058,19356, 23132,27460,32330,37846,44031,50954,58637,67203, 76613,87021,98443,110951,124616,139526,155681, 173246,192243] |