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| n | a(n) |
|---|---|
| 42 | 15 |
| 43 | 132 |
| 44 | 841 |
| 45 | 4121 |
| 46 | 17930 |
| 47 | 70744 |
| 48 | 261423 |
| 49 | 916034 |
| 50 | 3081868 |
| 51 | 10023732 |
| 52 | 31715267 |
| 53 | 98028167 |
| 54 | 297056213 |
| 55 | 884927182 |
| 56 | 2597478480 |
| 57 | 7526057037 |
| 58 | 21559034649 |
| 59 | 61136111551 |
| 60 | 171811678219 |
| 61 | 478962802722 |
| 62 | 1325555304942 |
| 63 | 3644566345969 |
| 64 | 9961213292972 |
| 65 | 27078853921024 |
[15,132,841,4121,17930,70744,261423,916034, 3081868,10023732,31715267,98028167,297056213, 884927182,2597478480,7526057037,21559034649, 61136111551,171811678219,478962802722, 1325555304942,3644566345969,9961213292972, 27078853921024] |