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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 2 |
| 6 | 2 |
| 7 | 4 |
| 8 | 4 |
| 9 | 8 |
| 10 | 14 |
| 11 | 20 |
| 12 | 32 |
| 13 | 44 |
| 14 | 70 |
| 15 | 104 |
| 16 | 152 |
| 17 | 228 |
| 18 | 326 |
| 19 | 488 |
| 20 | 704 |
| 21 | 1026 |
| 22 | 1492 |
| 23 | 2144 |
| 24 | 3120 |
| 25 | 4470 |
| 26 | 6450 |
| 27 | 9256 |
| 28 | 13256 |
| 29 | 19026 |
| 30 | 27144 |
| 31 | 38840 |
| 32 | 55360 |
| 33 | 78910 |
| 34 | 112406 |
| 35 | 159768 |
| 36 | 227240 |
| 37 | 322500 |
| 38 | 457734 |
| 39 | 648996 |
| 40 | 919372 |
| 41 | 1302114 |
| 42 | 1842036 |
| 43 | 2605452 |
| 44 | 3682112 |
[0,0,0,0,0,2,2,4,4,8,14,20,32,44,70,104,152,228, 326,488,704,1026,1492,2144,3120,4470,6450,9256, 13256,19026,27144,38840,55360,78910,112406,159768, 227240,322500,457734,648996,919372,1302114, 1842036,2605452,3682112] |