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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 8 |
| 3 | 21 |
| 4 | 48 |
| 5 | 93 |
| 6 | 170 |
| 7 | 285 |
| 8 | 452 |
| 9 | 674 |
| 10 | 985 |
| 11 | 1379 |
| 12 | 1894 |
| 13 | 2524 |
| 14 | 3307 |
| 15 | 4272 |
| 16 | 5414 |
| 17 | 6790 |
| 18 | 8406 |
| 19 | 10290 |
| 20 | 12475 |
| 21 | 14998 |
| 22 | 17857 |
| 23 | 21159 |
| 24 | 24847 |
| 25 | 29047 |
| 26 | 33708 |
| 27 | 38944 |
| 28 | 44737 |
| 29 | 51180 |
| 30 | 58301 |
| 31 | 66094 |
| 32 | 74687 |
| 33 | 84097 |
| 34 | 94333 |
| 35 | 105510 |
| 36 | 117600 |
| 37 | 130807 |
| 38 | 144983 |
| 39 | 160325 |
| 40 | 176837 |
[2,8,21,48,93,170,285,452,674,985,1379,1894,2524, 3307,4272,5414,6790,8406,10290,12475,14998,17857, 21159,24847,29047,33708,38944,44737,51180,58301, 66094,74687,84097,94333,105510,117600,130807, 144983,160325,176837] |