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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 7 |
| 6 | 9 |
| 7 | 13 |
| 8 | 16 |
| 9 | 20 |
| 10 | 26 |
| 11 | 31 |
| 12 | 40 |
| 13 | 50 |
| 14 | 61 |
| 15 | 78 |
| 16 | 93 |
| 17 | 119 |
| 18 | 150 |
| 19 | 189 |
| 20 | 242 |
| 21 | 310 |
| 22 | 400 |
| 23 | 525 |
| 24 | 684 |
| 25 | 900 |
| 26 | 1190 |
| 27 | 1581 |
| 28 | 2117 |
| 29 | 2836 |
| 30 | 3807 |
| 31 | 5136 |
| 32 | 6948 |
| 33 | 9425 |
| 34 | 12811 |
| 35 | 17437 |
| 36 | 23788 |
| 37 | 32517 |
| 38 | 44512 |
| 39 | 60971 |
| 40 | 83640 |
| 41 | 114899 |
| 42 | 157948 |
| 43 | 217336 |
| 44 | 299360 |
| 45 | 412635 |
| 46 | 569193 |
| 47 | 785753 |
| 48 | 1085319 |
| 49 | 1500140 |
| 50 | 2074794 |
| 51 | 2870849 |
| 52 | 3974425 |
| 53 | 5504966 |
[0,1,2,4,7,9,13,16,20,26,31,40,50,61,78,93,119, 150,189,242,310,400,525,684,900,1190,1581,2117, 2836,3807,5136,6948,9425,12811,17437,23788,32517, 44512,60971,83640,114899,157948,217336,299360, 412635,569193,785753,1085319,1500140,2074794, 2870849,3974425,5504966] |