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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 8 |
| 5 | 13 |
| 6 | 21 |
| 7 | 31 |
| 8 | 42 |
| 9 | 55 |
| 10 | 71 |
| 11 | 87 |
| 12 | 107 |
| 13 | 128 |
| 14 | 150 |
| 15 | 174 |
| 16 | 203 |
| 17 | 231 |
| 18 | 260 |
| 19 | 294 |
| 20 | 328 |
| 21 | 364 |
| 22 | 404 |
| 23 | 442 |
| 24 | 486 |
| 25 | 530 |
| 26 | 576 |
| 27 | 624 |
| 28 | 674 |
| 29 | 726 |
| 30 | 780 |
| 31 | 838 |
| 32 | 895 |
| 33 | 953 |
| 34 | 1017 |
| 35 | 1079 |
| 36 | 1146 |
| 37 | 1216 |
| 38 | 1284 |
| 39 | 1354 |
| 40 | 1430 |
| 41 | 1505 |
| 42 | 1583 |
| 43 | 1663 |
| 44 | 1745 |
| 45 | 1827 |
| 46 | 1913 |
| 47 | 2001 |
| 48 | 2091 |
| 49 | 2184 |
| 50 | 2275 |
| 51 | 2371 |
| 52 | 2471 |
| 53 | 2567 |
| 54 | 2669 |
| 55 | 2773 |
[0,1,3,8,13,21,31,42,55,71,87,107,128,150,174,203, 231,260,294,328,364,404,442,486,530,576,624,674, 726,780,838,895,953,1017,1079,1146,1216,1284,1354, 1430,1505,1583,1663,1745,1827,1913,2001,2091,2184, 2275,2371,2471,2567,2669,2773] |