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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 2 |
| 7 | 3 |
| 8 | 4 |
| 9 | 6 |
| 10 | 8 |
| 11 | 10 |
| 12 | 14 |
| 13 | 18 |
| 14 | 24 |
| 15 | 32 |
| 16 | 41 |
| 17 | 52 |
| 18 | 67 |
| 19 | 85 |
| 20 | 107 |
| 21 | 135 |
| 22 | 169 |
| 23 | 210 |
| 24 | 263 |
| 25 | 324 |
| 26 | 400 |
| 27 | 493 |
| 28 | 604 |
| 29 | 736 |
| 30 | 899 |
| 31 | 1091 |
| 32 | 1322 |
| 33 | 1599 |
| 34 | 1929 |
| 35 | 2319 |
| 36 | 2787 |
| 37 | 3336 |
| 38 | 3989 |
| 39 | 4760 |
| 40 | 5669 |
| 41 | 6734 |
| 42 | 7994 |
| 43 | 9465 |
| 44 | 11192 |
| 45 | 13211 |
| 46 | 15571 |
| 47 | 18319 |
| 48 | 21531 |
| 49 | 25257 |
| 50 | 29594 |
| 51 | 34626 |
[0,0,1,1,1,2,3,4,6,8,10,14,18,24,32,41,52,67,85, 107,135,169,210,263,324,400,493,604,736,899,1091, 1322,1599,1929,2319,2787,3336,3989,4760,5669,6734, 7994,9465,11192,13211,15571,18319,21531,25257, 29594,34626] |