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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 2 |
| 8 | 4 |
| 9 | 8 |
| 10 | 6 |
| 11 | 10 |
| 12 | 9 |
| 13 | 14 |
| 14 | 16 |
| 15 | 21 |
| 16 | 28 |
| 17 | 38 |
| 18 | 45 |
| 19 | 69 |
| 20 | 86 |
| 21 | 123 |
| 22 | 157 |
| 23 | 210 |
| 24 | 280 |
| 25 | 363 |
| 26 | 480 |
| 27 | 622 |
| 28 | 818 |
| 29 | 1104 |
| 30 | 1453 |
| 31 | 1940 |
| 32 | 2567 |
| 33 | 3421 |
| 34 | 4534 |
| 35 | 5996 |
| 36 | 7992 |
| 37 | 10590 |
| 38 | 14005 |
| 39 | 18596 |
| 40 | 24707 |
| 41 | 32784 |
| 42 | 43361 |
| 43 | 57566 |
| 44 | 76449 |
| 45 | 101457 |
| 46 | 134506 |
| 47 | 178495 |
| 48 | 237051 |
[0,0,1,1,1,1,2,4,8,6,10,9,14,16,21,28,38,45,69,86, 123,157,210,280,363,480,622,818,1104,1453,1940, 2567,3421,4534,5996,7992,10590,14005,18596,24707, 32784,43361,57566,76449,101457,134506,178495, 237051] |