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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 2 |
| 4 | 2 |
| 5 | 4 |
| 6 | 10 |
| 7 | 12 |
| 8 | 18 |
| 9 | 26 |
| 10 | 32 |
| 11 | 40 |
| 12 | 52 |
| 13 | 60 |
| 14 | 72 |
| 15 | 206 |
| 16 | 218 |
| 17 | 352 |
| 18 | 490 |
| 19 | 744 |
| 20 | 1002 |
| 21 | 1382 |
| 22 | 1760 |
| 23 | 2380 |
| 24 | 3004 |
| 25 | 3864 |
| 26 | 4728 |
| 27 | 5954 |
| 28 | 12218 |
| 29 | 13804 |
| 30 | 20554 |
| 31 | 27660 |
| 32 | 39930 |
| 33 | 52682 |
| 34 | 75632 |
| 35 | 99184 |
| 36 | 132940 |
| 37 | 172332 |
| 38 | 227088 |
| 39 | 287606 |
| 40 | 373562 |
| 41 | 465280 |
| 42 | 587602 |
| 43 | 725880 |
| 44 | 899802 |
| 45 | 1094846 |
[0,0,2,2,4,10,12,18,26,32,40,52,60,72,206,218,352, 490,744,1002,1382,1760,2380,3004,3864,4728,5954, 12218,13804,20554,27660,39930,52682,75632,99184, 132940,172332,227088,287606,373562,465280,587602, 725880,899802,1094846] |