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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 20 |
| 3 | 52 |
| 4 | 164 |
| 5 | 340 |
| 6 | 580 |
| 7 | 884 |
| 8 | 1252 |
| 9 | 1684 |
| 10 | 2180 |
| 11 | 2740 |
| 12 | 4052 |
| 13 | 4804 |
| 14 | 5620 |
| 15 | 6500 |
| 16 | 7444 |
| 17 | 8452 |
| 18 | 9524 |
| 19 | 10660 |
| 20 | 11860 |
| 21 | 13124 |
| 22 | 14452 |
| 23 | 15844 |
| 24 | 17300 |
| 25 | 18820 |
| 26 | 20404 |
| 27 | 22052 |
| 28 | 25540 |
| 29 | 27380 |
| 30 | 29284 |
| 31 | 31252 |
| 32 | 33284 |
| 33 | 35380 |
| 34 | 37540 |
| 35 | 39764 |
| 36 | 42052 |
| 37 | 44404 |
| 38 | 46820 |
| 39 | 49300 |
| 40 | 51844 |
[10,20,52,164,340,580,884,1252,1684,2180,2740, 4052,4804,5620,6500,7444,8452,9524,10660,11860, 13124,14452,15844,17300,18820,20404,22052,25540, 27380,29284,31252,33284,35380,37540,39764,42052, 44404,46820,49300,51844] |