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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 8 |
| 3 | 12 |
| 4 | 20 |
| 5 | 36 |
| 6 | 56 |
| 7 | 76 |
| 8 | 104 |
| 9 | 152 |
| 10 | 216 |
| 11 | 284 |
| 12 | 364 |
| 13 | 484 |
| 14 | 648 |
| 15 | 828 |
| 16 | 1028 |
| 17 | 1300 |
| 18 | 1664 |
| 19 | 2076 |
| 20 | 2532 |
| 21 | 3108 |
| 22 | 3848 |
| 23 | 4700 |
| 24 | 5640 |
| 25 | 6776 |
| 26 | 8200 |
| 27 | 9848 |
| 28 | 11660 |
| 29 | 13796 |
| 30 | 16424 |
| 31 | 19452 |
| 32 | 22776 |
| 33 | 26612 |
| 34 | 31240 |
| 35 | 36572 |
| 36 | 42440 |
| 37 | 49092 |
| 38 | 56968 |
| 39 | 66044 |
| 40 | 76040 |
| 41 | 87236 |
| 42 | 100280 |
| 43 | 115244 |
[1,4,8,12,20,36,56,76,104,152,216,284,364,484,648, 828,1028,1300,1664,2076,2532,3108,3848,4700,5640, 6776,8200,9848,11660,13796,16424,19452,22776, 26612,31240,36572,42440,49092,56968,66044,76040, 87236,100280,115244] |