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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 4 |
| 4 | 4 |
| 5 | 4 |
| 6 | 37 |
| 7 | 25 |
| 8 | 68 |
| 9 | 49 |
| 10 | 122 |
| 11 | 115 |
| 12 | 340 |
| 13 | 544 |
| 14 | 487 |
| 15 | 959 |
| 16 | 2167 |
| 17 | 1926 |
| 18 | 4837 |
| 19 | 3847 |
| 20 | 6757 |
| 21 | 6452 |
| 22 | 3620 |
| 23 | 11353 |
| 24 | 13934 |
| 25 | 9371 |
| 26 | 16353 |
| 27 | 9211 |
| 28 | 30949 |
| 29 | 49702 |
| 30 | 17330 |
| 31 | 32575 |
| 32 | 72544 |
| 33 | 62348 |
| 34 | 109769 |
| 35 | 145892 |
| 36 | 51270 |
| 37 | 173914 |
| 38 | 130687 |
| 39 | 61665 |
| 40 | 102887 |
| 41 | 351770 |
| 42 | 446927 |
| 43 | 504949 |
| 44 | 258079 |
[0,0,4,4,4,37,25,68,49,122,115,340,544,487,959, 2167,1926,4837,3847,6757,6452,3620,11353,13934, 9371,16353,9211,30949,49702,17330,32575,72544, 62348,109769,145892,51270,173914,130687,61665, 102887,351770,446927,504949,258079] |