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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 0 |
| 3 | 3 |
| 4 | 1 |
| 5 | 4 |
| 6 | 2 |
| 7 | 6 |
| 8 | 4 |
| 9 | 9 |
| 10 | 7 |
| 11 | 14 |
| 12 | 12 |
| 13 | 22 |
| 14 | 20 |
| 15 | 35 |
| 16 | 33 |
| 17 | 56 |
| 18 | 54 |
| 19 | 90 |
| 20 | 88 |
| 21 | 145 |
| 22 | 143 |
| 23 | 234 |
| 24 | 232 |
| 25 | 378 |
| 26 | 376 |
| 27 | 611 |
| 28 | 609 |
| 29 | 988 |
| 30 | 986 |
| 31 | 1598 |
| 32 | 1596 |
| 33 | 2585 |
| 34 | 2583 |
| 35 | 4182 |
| 36 | 4180 |
| 37 | 6766 |
| 38 | 6764 |
| 39 | 10947 |
| 40 | 10945 |
| 41 | 17712 |
| 42 | 17710 |
| 43 | 28658 |
| 44 | 28656 |
| 45 | 46369 |
| 46 | 46367 |
| 47 | 75026 |
| 48 | 75024 |
| 49 | 121394 |
| 50 | 121392 |
| 51 | 196419 |
| 52 | 196417 |
| 53 | 317812 |
| 54 | 317810 |
[0,2,0,3,1,4,2,6,4,9,7,14,12,22,20,35,33,56,54,90, 88,145,143,234,232,378,376,611,609,988,986,1598, 1596,2585,2583,4182,4180,6766,6764,10947,10945, 17712,17710,28658,28656,46369,46367,75026,75024, 121394,121392,196419,196417,317812,317810] |