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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 8 |
| 6 | 44 |
| 7 | 66 |
| 8 | 88 |
| 9 | 252 |
| 10 | 272 |
| 11 | 414 |
| 12 | 484 |
| 13 | 616 |
| 14 | 858 |
| 15 | 2112 |
| 16 | 2772 |
| 17 | 2992 |
| 18 | 4004 |
| 19 | 4224 |
| 20 | 6006 |
| 21 | 6336 |
| 22 | 6776 |
| 23 | 8008 |
| 24 | 8448 |
| 25 | 14641 |
| 26 | 25952 |
| 27 | 27872 |
| 28 | 27972 |
| 29 | 29592 |
| 30 | 29792 |
| 31 | 36963 |
| 32 | 40404 |
| 33 | 42224 |
| 34 | 42624 |
| 35 | 44544 |
| 36 | 44944 |
| 37 | 48384 |
| 38 | 63336 |
| 39 | 63536 |
| 40 | 63936 |
| 41 | 69696 |
| 42 | 84448 |
[1,2,4,6,8,44,66,88,252,272,414,484,616,858,2112, 2772,2992,4004,4224,6006,6336,6776,8008,8448, 14641,25952,27872,27972,29592,29792,36963,40404, 42224,42624,44544,44944,48384,63336,63536,63936, 69696,84448] |