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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 4 |
| 2 | 6 |
| 3 | 18 |
| 4 | 28 |
| 5 | 56 |
| 6 | 60 |
| 7 | 64 |
| 8 | 68 |
| 9 | 72 |
| 10 | 80 |
| 11 | 116 |
| 12 | 126 |
| 13 | 152 |
| 14 | 170 |
| 15 | 184 |
| 16 | 200 |
| 17 | 214 |
| 18 | 234 |
| 19 | 248 |
| 20 | 276 |
| 21 | 290 |
| 22 | 328 |
| 23 | 330 |
| 24 | 334 |
| 25 | 346 |
| 26 | 360 |
| 27 | 402 |
| 28 | 408 |
| 29 | 416 |
| 30 | 438 |
| 31 | 472 |
| 32 | 512 |
| 33 | 524 |
| 34 | 578 |
| 35 | 598 |
| 36 | 662 |
| 37 | 702 |
| 38 | 744 |
| 39 | 786 |
| 40 | 810 |
| 41 | 824 |
| 42 | 864 |
| 43 | 908 |
| 44 | 968 |
| 45 | 1008 |
| 46 | 1030 |
| 47 | 1032 |
| 48 | 1052 |
| 49 | 1076 |
| 50 | 1172 |
| 51 | 1182 |
| 52 | 1220 |
[2,4,6,18,28,56,60,64,68,72,80,116,126,152,170, 184,200,214,234,248,276,290,328,330,334,346,360, 402,408,416,438,472,512,524,578,598,662,702,744, 786,810,824,864,908,968,1008,1030,1032,1052,1076, 1172,1182,1220] |