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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 4 |
| 7 | 4 |
| 8 | 8 |
| 9 | 12 |
| 10 | 38 |
| 11 | 42 |
| 12 | 72 |
| 13 | 98 |
| 14 | 150 |
| 15 | 298 |
| 16 | 372 |
| 17 | 542 |
| 18 | 760 |
| 19 | 1070 |
| 20 | 1428 |
| 21 | 2600 |
| 22 | 3120 |
| 23 | 4550 |
| 24 | 6050 |
| 25 | 8478 |
| 26 | 10976 |
| 27 | 15220 |
| 28 | 23872 |
| 29 | 29950 |
| 30 | 41276 |
| 31 | 55062 |
| 32 | 74096 |
| 33 | 97148 |
| 34 | 129786 |
| 35 | 167256 |
| 36 | 256070 |
| 37 | 314454 |
| 38 | 429338 |
| 39 | 556364 |
| 40 | 749266 |
| 41 | 955746 |
| 42 | 1275016 |
| 43 | 1618054 |
[0,0,0,0,0,0,4,4,8,12,38,42,72,98,150,298,372,542, 760,1070,1428,2600,3120,4550,6050,8478,10976, 15220,23872,29950,41276,55062,74096,97148,129786, 167256,256070,314454,429338,556364,749266,955746, 1275016,1618054] |