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| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 28 |
| 3 | 424 |
| 4 | 1001 |
| 5 | 14453 |
| 6 | 34054 |
| 7 | 491026 |
| 8 | 1156883 |
| 9 | 16680479 |
| 10 | 39300016 |
| 11 | 566645308 |
| 12 | 1335043709 |
| 13 | 19249260041 |
| 14 | 45352186138 |
| 15 | 653908196134 |
| 16 | 1540639285031 |
| 17 | 22213629408563 |
| 18 | 52336383504964 |
| 19 | 754609491695056 |
| 20 | 1777896399883793 |
| 21 | 25634509088223389 |
| 22 | 60396141212544046 |
[11,28,424,1001,14453,34054,491026,1156883, 16680479,39300016,566645308,1335043709, 19249260041,45352186138,653908196134, 1540639285031,22213629408563,52336383504964, 754609491695056,1777896399883793, 25634509088223389,60396141212544046] |