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| n | a(n) |
|---|---|
| 1 | 27 |
| 2 | 615 |
| 3 | 3843 |
| 4 | 14351 |
| 5 | 40363 |
| 6 | 94711 |
| 7 | 195859 |
| 8 | 368927 |
| 9 | 646715 |
| 10 | 1070727 |
| 11 | 1692195 |
| 12 | 2573103 |
| 13 | 3787211 |
| 14 | 5421079 |
| 15 | 7575091 |
| 16 | 10364479 |
| 17 | 13920347 |
| 18 | 18390695 |
| 19 | 23941443 |
| 20 | 30757455 |
| 21 | 39043563 |
| 22 | 49025591 |
| 23 | 60951379 |
| 24 | 75091807 |
| 25 | 91741819 |
| 26 | 111221447 |
| 27 | 133876835 |
| 28 | 160081263 |
| 29 | 190236171 |
[27,615,3843,14351,40363,94711,195859,368927, 646715,1070727,1692195,2573103,3787211,5421079, 7575091,10364479,13920347,18390695,23941443, 30757455,39043563,49025591,60951379,75091807, 91741819,111221447,133876835,160081263,190236171] |