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| n | a(n) |
|---|---|
| 1 | 62 |
| 2 | 242 |
| 3 | 944 |
| 4 | 3686 |
| 5 | 14402 |
| 6 | 56312 |
| 7 | 220334 |
| 8 | 862706 |
| 9 | 3380192 |
| 10 | 13252982 |
| 11 | 51996674 |
| 12 | 204137576 |
| 13 | 801957182 |
| 14 | 3152502002 |
| 15 | 12400248464 |
| 16 | 48805735046 |
| 17 | 192207885122 |
| 18 | 757400598872 |
| 19 | 2986264405454 |
| 20 | 11780750826866 |
| 21 | 46500068952512 |
[62,242,944,3686,14402,56312,220334,862706, 3380192,13252982,51996674,204137576,801957182, 3152502002,12400248464,48805735046,192207885122, 757400598872,2986264405454,11780750826866, 46500068952512] |