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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 1 |
| 8 | 2 |
| 9 | 4 |
| 10 | 4 |
| 11 | 5 |
| 12 | 11 |
| 13 | 11 |
| 14 | 14 |
| 15 | 27 |
| 16 | 29 |
| 17 | 37 |
| 18 | 61 |
| 19 | 72 |
| 20 | 97 |
| 21 | 147 |
| 22 | 181 |
| 23 | 246 |
| 24 | 368 |
| 25 | 470 |
| 26 | 632 |
| 27 | 914 |
| 28 | 1198 |
| 29 | 1611 |
| 30 | 2286 |
| 31 | 3018 |
| 32 | 4079 |
| 33 | 5709 |
| 34 | 7619 |
| 35 | 10329 |
| 36 | 14333 |
| 37 | 19258 |
| 38 | 26142 |
| 39 | 36069 |
| 40 | 48688 |
| 41 | 66114 |
| 42 | 90800 |
| 43 | 122913 |
| 44 | 167020 |
| 45 | 228735 |
| 46 | 310167 |
| 47 | 421708 |
| 48 | 576499 |
| 49 | 782803 |
[1,0,0,1,1,1,2,1,2,4,4,5,11,11,14,27,29,37,61,72, 97,147,181,246,368,470,632,914,1198,1611,2286, 3018,4079,5709,7619,10329,14333,19258,26142,36069, 48688,66114,90800,122913,167020,228735,310167, 421708,576499,782803] |