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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 8 |
| 4 | 28 |
| 5 | 74 |
| 6 | 159 |
| 7 | 304 |
| 8 | 528 |
| 9 | 860 |
| 10 | 1325 |
| 11 | 1960 |
| 12 | 2796 |
| 13 | 3878 |
| 14 | 5243 |
| 15 | 6944 |
| 16 | 9024 |
| 17 | 11544 |
| 18 | 14553 |
| 19 | 18120 |
| 20 | 22300 |
| 21 | 27170 |
| 22 | 32791 |
| 23 | 39248 |
| 24 | 46608 |
| 25 | 54964 |
| 26 | 64389 |
| 27 | 74984 |
| 28 | 86828 |
| 29 | 100030 |
| 30 | 114675 |
| 31 | 130880 |
| 32 | 148736 |
| 33 | 168368 |
| 34 | 189873 |
| 35 | 213384 |
| 36 | 239004 |
| 37 | 266874 |
| 38 | 297103 |
| 39 | 329840 |
[0,0,1,8,28,74,159,304,528,860,1325,1960,2796, 3878,5243,6944,9024,11544,14553,18120,22300,27170, 32791,39248,46608,54964,64389,74984,86828,100030, 114675,130880,148736,168368,189873,213384,239004, 266874,297103,329840] |