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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 1 |
| 6 | 1 |
| 7 | 2 |
| 8 | 3 |
| 9 | 5 |
| 10 | 6 |
| 11 | 9 |
| 12 | 11 |
| 13 | 15 |
| 14 | 18 |
| 15 | 26 |
| 16 | 30 |
| 17 | 40 |
| 18 | 48 |
| 19 | 62 |
| 20 | 72 |
| 21 | 91 |
| 22 | 105 |
| 23 | 129 |
| 24 | 148 |
| 25 | 182 |
| 26 | 206 |
| 27 | 248 |
| 28 | 282 |
| 29 | 335 |
| 30 | 377 |
| 31 | 443 |
| 32 | 496 |
| 33 | 576 |
| 34 | 642 |
| 35 | 743 |
| 36 | 823 |
| 37 | 943 |
| 38 | 1044 |
| 39 | 1188 |
| 40 | 1308 |
| 41 | 1479 |
| 42 | 1623 |
| 43 | 1823 |
| 44 | 1994 |
| 45 | 2233 |
| 46 | 2433 |
| 47 | 2709 |
| 48 | 2948 |
| 49 | 3268 |
| 50 | 3544 |
| 51 | 3913 |
| 52 | 4233 |
| 53 | 4654 |
| 54 | 5023 |
[0,0,0,0,0,1,1,2,3,5,6,9,11,15,18,26,30,40,48,62, 72,91,105,129,148,182,206,248,282,335,377,443,496, 576,642,743,823,943,1044,1188,1308,1479,1623,1823, 1994,2233,2433,2709,2948,3268,3544,3913,4233,4654, 5023] |