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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 0 |
| 4 | -1 |
| 5 | -1 |
| 6 | 0 |
| 7 | 1 |
| 8 | 0 |
| 9 | -1 |
| 10 | 0 |
| 11 | 2 |
| 12 | 1 |
| 13 | -3 |
| 14 | -3 |
| 15 | 4 |
| 16 | 7 |
| 17 | -4 |
| 18 | -14 |
| 19 | 3 |
| 20 | 28 |
| 21 | 4 |
| 22 | -53 |
| 23 | -30 |
| 24 | 91 |
| 25 | 95 |
| 26 | -142 |
| 27 | -240 |
| 28 | 191 |
| 29 | 556 |
| 30 | -165 |
| 31 | -1192 |
| 32 | -140 |
| 33 | 2358 |
| 34 | 1215 |
| 35 | -4322 |
| 36 | -4194 |
| 37 | 7211 |
| 38 | 11492 |
| 39 | -10300 |
| 40 | -27839 |
| 41 | 10194 |
| 42 | 61770 |
| 43 | 3506 |
| 44 | -127099 |
| 45 | -58080 |
| 46 | 242071 |
| 47 | 218346 |
| 48 | -419278 |
[1,1,0,-1,-1,0,1,0,-1,0,2,1,-3,-3,4,7,-4,-14,3,28, 4,-53,-30,91,95,-142,-240,191,556,-165,-1192,-140, 2358,1215,-4322,-4194,7211,11492,-10300,-27839, 10194,61770,3506,-127099,-58080,242071,218346, -419278] |