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| n | a(n) |
|---|---|
| 1 | 4192 |
| 2 | 12464 |
| 3 | 33560 |
| 4 | 116168 |
| 5 | 360760 |
| 6 | 1349336 |
| 7 | 4577624 |
| 8 | 17961560 |
| 9 | 64580152 |
| 10 | 261840344 |
| 11 | 980480600 |
| 12 | 4070568728 |
| 13 | 15709810360 |
| 14 | 66384051416 |
| 15 | 262296459224 |
| 16 | 1123428836120 |
| 17 | 4523517191992 |
| 18 | 19577976359384 |
| 19 | 80058579242840 |
[4192,12464,33560,116168,360760,1349336,4577624, 17961560,64580152,261840344,980480600,4070568728, 15709810360,66384051416,262296459224, 1123428836120,4523517191992,19577976359384, 80058579242840] |