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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 1 |
| 7 | 1 |
| 8 | 2 |
| 9 | 2 |
| 10 | 4 |
| 11 | 5 |
| 12 | 9 |
| 13 | 9 |
| 14 | 12 |
| 15 | 15 |
| 16 | 21 |
| 17 | 23 |
| 18 | 31 |
| 19 | 32 |
| 20 | 45 |
| 21 | 50 |
| 22 | 61 |
| 23 | 66 |
| 24 | 87 |
| 25 | 94 |
| 26 | 114 |
| 27 | 123 |
| 28 | 154 |
| 29 | 165 |
| 30 | 199 |
| 31 | 212 |
| 32 | 261 |
| 33 | 276 |
| 34 | 323 |
| 35 | 345 |
| 36 | 418 |
| 37 | 438 |
| 38 | 507 |
| 39 | 538 |
| 40 | 637 |
| 41 | 672 |
| 42 | 771 |
| 43 | 810 |
| 44 | 947 |
| 45 | 999 |
| 46 | 1130 |
| 47 | 1192 |
| 48 | 1381 |
| 49 | 1445 |
| 50 | 1625 |
| 51 | 1716 |
| 52 | 1955 |
| 53 | 2045 |
| 54 | 2289 |
| 55 | 2399 |
| 56 | 2720 |
[0,0,0,0,0,0,1,1,2,2,4,5,9,9,12,15,21,23,31,32,45, 50,61,66,87,94,114,123,154,165,199,212,261,276, 323,345,418,438,507,538,637,672,771,810,947,999, 1130,1192,1381,1445,1625,1716,1955,2045,2289,2399, 2720] |