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| n | a(n) |
|---|---|
| 1 | 452 |
| 2 | 952 |
| 3 | 2300 |
| 4 | 6136 |
| 5 | 17612 |
| 6 | 53512 |
| 7 | 170300 |
| 8 | 563416 |
| 9 | 1926572 |
| 10 | 6776872 |
| 11 | 24422300 |
| 12 | 89839096 |
| 13 | 336216332 |
| 14 | 1276265032 |
| 15 | 4900898300 |
| 16 | 18994385176 |
| 17 | 74156470892 |
| 18 | 291175781992 |
| 19 | 1148379038300 |
| 20 | 4544596313656 |
| 21 | 18031730594252 |
| 22 | 71687168111752 |
[452,952,2300,6136,17612,53512,170300,563416, 1926572,6776872,24422300,89839096,336216332, 1276265032,4900898300,18994385176,74156470892, 291175781992,1148379038300,4544596313656, 18031730594252,71687168111752] |