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| n | a(n) |
|---|---|
| -1 | 1 |
| 0 | 0 |
| 1 | 4 |
| 2 | 2 |
| 3 | 6 |
| 4 | 10 |
| 5 | 15 |
| 6 | 18 |
| 7 | 37 |
| 8 | 30 |
| 9 | 57 |
| 10 | 70 |
| 11 | 105 |
| 12 | 114 |
| 13 | 178 |
| 14 | 192 |
| 15 | 285 |
| 16 | 346 |
| 17 | 465 |
| 18 | 522 |
| 19 | 751 |
| 20 | 830 |
| 21 | 1125 |
| 22 | 1328 |
| 23 | 1708 |
| 24 | 1974 |
| 25 | 2600 |
| 26 | 2964 |
| 27 | 3795 |
| 28 | 4424 |
| 29 | 5541 |
| 30 | 6390 |
| 31 | 8090 |
| 32 | 9230 |
| 33 | 11424 |
| 34 | 13308 |
| 35 | 16225 |
| 36 | 18714 |
| 37 | 22941 |
| 38 | 26216 |
| 39 | 31794 |
| 40 | 36730 |
| 41 | 44020 |
| 42 | 50544 |
| 43 | 60671 |
| 44 | 69360 |
| 45 | 82560 |
| 46 | 94952 |
[1,0,4,2,6,10,15,18,37,30,57,70,105,114,178,192, 285,346,465,522,751,830,1125,1328,1708,1974,2600, 2964,3795,4424,5541,6390,8090,9230,11424,13308, 16225,18714,22941,26216,31794,36730,44020,50544, 60671,69360,82560,94952] |