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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 6 |
| 4 | 14 |
| 5 | 15 |
| 6 | 26 |
| 7 | 26 |
| 8 | 48 |
| 9 | 46 |
| 10 | 83 |
| 11 | 97 |
| 12 | 146 |
| 13 | 112 |
| 14 | 49 |
| 15 | -186 |
| 16 | -448 |
| 17 | -735 |
| 18 | -485 |
| 19 | 779 |
| 20 | 3977 |
| 21 | 9323 |
| 22 | 16569 |
| 23 | 23056 |
| 24 | 23996 |
| 25 | 10116 |
| 26 | -31501 |
| 27 | -120720 |
| 28 | -283153 |
| 29 | -548924 |
| 30 | -932348 |
| 31 | -1380125 |
| 32 | -1655520 |
| 33 | -1144651 |
| 34 | 1384894 |
| 35 | 7943203 |
| 36 | 21083482 |
| 37 | 42787785 |
| 38 | 71816970 |
| 39 | 98995196 |
[1,4,6,14,15,26,26,48,46,83,97,146,112,49,-186, -448,-735,-485,779,3977,9323,16569,23056,23996, 10116,-31501,-120720,-283153,-548924,-932348, -1380125,-1655520,-1144651,1384894,7943203, 21083482,42787785,71816970,98995196] |