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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 0 |
| 5 | 2 |
| 6 | 1 |
| 7 | 3 |
| 8 | 2 |
| 9 | 5 |
| 10 | 4 |
| 11 | 8 |
| 12 | 7 |
| 13 | 12 |
| 14 | 12 |
| 15 | 19 |
| 16 | 19 |
| 17 | 29 |
| 18 | 31 |
| 19 | 43 |
| 20 | 48 |
| 21 | 65 |
| 22 | 73 |
| 23 | 97 |
| 24 | 110 |
| 25 | 142 |
| 26 | 164 |
| 27 | 208 |
| 28 | 240 |
| 29 | 301 |
| 30 | 350 |
| 31 | 432 |
| 32 | 504 |
| 33 | 617 |
| 34 | 719 |
| 35 | 874 |
| 36 | 1019 |
| 37 | 1228 |
| 38 | 1434 |
| 39 | 1717 |
| 40 | 2001 |
| 41 | 2385 |
| 42 | 2778 |
| 43 | 3292 |
| 44 | 3831 |
| 45 | 4522 |
| 46 | 5252 |
| 47 | 6177 |
| 48 | 7164 |
| 49 | 8392 |
| 50 | 9722 |
| 51 | 11352 |
| 52 | 13125 |
| 53 | 15283 |
| 54 | 17643 |
[0,0,0,1,0,2,1,3,2,5,4,8,7,12,12,19,19,29,31,43, 48,65,73,97,110,142,164,208,240,301,350,432,504, 617,719,874,1019,1228,1434,1717,2001,2385,2778, 3292,3831,4522,5252,6177,7164,8392,9722,11352, 13125,15283,17643] |