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| n | a(n) |
|---|---|
| 1 | 36 |
| 2 | 379 |
| 3 | 3081 |
| 4 | 20631 |
| 5 | 120304 |
| 6 | 634509 |
| 7 | 3104985 |
| 8 | 14345803 |
| 9 | 63351756 |
| 10 | 269772537 |
| 11 | 1114996177 |
| 12 | 4494912111 |
| 13 | 17741279760 |
| 14 | 68762781541 |
| 15 | 262334037201 |
| 16 | 987009622419 |
| 17 | 3668074098940 |
| 18 | 13482629809713 |
| 19 | 49069419165081 |
| 20 | 176992814380663 |
[36,379,3081,20631,120304,634509,3104985,14345803, 63351756,269772537,1114996177,4494912111, 17741279760,68762781541,262334037201,987009622419, 3668074098940,13482629809713,49069419165081, 176992814380663] |