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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 6 |
| 3 | 20 |
| 4 | 42 |
| 5 | 96 |
| 6 | 138 |
| 7 | 218 |
| 8 | 264 |
| 9 | 348 |
| 10 | 490 |
| 11 | 582 |
| 12 | 762 |
| 13 | 884 |
| 14 | 962 |
| 15 | 1086 |
| 16 | 1282 |
| 17 | 1510 |
| 18 | 1564 |
| 19 | 1890 |
| 20 | 2028 |
| 21 | 2110 |
| 22 | 2348 |
| 23 | 2570 |
| 24 | 2798 |
| 25 | 3128 |
| 26 | 3396 |
| 27 | 3528 |
| 28 | 3686 |
| 29 | 3798 |
| 30 | 3932 |
| 31 | 4672 |
| 32 | 4884 |
| 33 | 5096 |
| 34 | 5316 |
| 35 | 5802 |
| 36 | 5946 |
| 37 | 6274 |
| 38 | 6640 |
| 39 | 6850 |
| 40 | 7190 |
| 41 | 7464 |
| 42 | 7632 |
| 43 | 8166 |
| 44 | 8290 |
| 45 | 8538 |
| 46 | 8642 |
| 47 | 9334 |
| 48 | 10334 |
| 49 | 10520 |
| 50 | 10650 |
| 51 | 10830 |
| 52 | 11048 |
| 53 | 11240 |
| 54 | 11872 |
| 55 | 12088 |
| 56 | 12508 |
[2,6,20,42,96,138,218,264,348,490,582,762,884,962, 1086,1282,1510,1564,1890,2028,2110,2348,2570,2798, 3128,3396,3528,3686,3798,3932,4672,4884,5096,5316, 5802,5946,6274,6640,6850,7190,7464,7632,8166,8290, 8538,8642,9334,10334,10520,10650,10830,11048, 11240,11872,12088,12508] |