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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 2 |
| 8 | 2 |
| 9 | 3 |
| 10 | 6 |
| 11 | 10 |
| 12 | 17 |
| 13 | 21 |
| 14 | 30 |
| 15 | 44 |
| 16 | 61 |
| 17 | 87 |
| 18 | 124 |
| 19 | 175 |
| 20 | 254 |
| 21 | 362 |
| 22 | 511 |
| 23 | 696 |
| 24 | 955 |
| 25 | 1313 |
| 26 | 1802 |
| 27 | 2462 |
| 28 | 3321 |
| 29 | 4422 |
| 30 | 5969 |
| 31 | 8089 |
| 32 | 10785 |
| 33 | 14513 |
| 34 | 19333 |
| 35 | 25774 |
| 36 | 34259 |
| 37 | 45522 |
[0,0,0,0,0,0,2,2,3,6,10,17,21,30,44,61,87,124,175, 254,362,511,696,955,1313,1802,2462,3321,4422,5969, 8089,10785,14513,19333,25774,34259,45522] |