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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 6 |
| 6 | 7 |
| 7 | 12 |
| 8 | 15 |
| 9 | 16 |
| 10 | 18 |
| 11 | 28 |
| 12 | 30 |
| 13 | 55 |
| 14 | 67 |
| 15 | 84 |
| 16 | 228 |
| 17 | 390 |
| 18 | 784 |
| 19 | 1110 |
| 20 | 1704 |
| 21 | 2008 |
| 22 | 2139 |
| 23 | 2191 |
| 24 | 2367 |
| 25 | 2370 |
| 26 | 4002 |
| 27 | 4060 |
| 28 | 4062 |
| 29 | 4552 |
| 30 | 5547 |
| 31 | 8739 |
| 32 | 17187 |
| 33 | 17220 |
| 34 | 17934 |
| 35 | 20724 |
| 36 | 22732 |
| 37 | 25927 |
| 38 | 31854 |
| 39 | 33028 |
| 40 | 35754 |
| 41 | 38244 |
| 42 | 39796 |
| 43 | 40347 |
| 44 | 55456 |
| 45 | 58312 |
| 46 | 122550 |
| 47 | 205962 |
| 48 | 235326 |
| 49 | 363120 |
| 50 | 479844 |
| 51 | 685578 |
| 52 | 742452 |
| 53 | 1213815 |
| 54 | 1434400 |
| 55 | 1594947 |
| 56 | 1875552 |
| 57 | 1940812 |
| 58 | 2205444 |
[1,2,3,4,6,7,12,15,16,18,28,30,55,67,84,228,390, 784,1110,1704,2008,2139,2191,2367,2370,4002,4060, 4062,4552,5547,8739,17187,17220,17934,20724,22732, 25927,31854,33028,35754,38244,39796,40347,55456, 58312,122550,205962,235326,363120,479844,685578, 742452,1213815,1434400,1594947,1875552,1940812, 2205444] |