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| n | a(n) |
|---|---|
| 1 | 19 |
| 2 | 301 |
| 3 | 1753 |
| 4 | 6913 |
| 5 | 17713 |
| 6 | 38497 |
| 7 | 80473 |
| 8 | 139927 |
| 9 | 225595 |
| 10 | 356329 |
| 11 | 549967 |
| 12 | 756901 |
| 13 | 1113283 |
| 14 | 1474867 |
| 15 | 1913365 |
| 16 | 2620789 |
| 17 | 3418081 |
| 18 | 4119175 |
| 19 | 5428993 |
| 20 | 6453235 |
| 21 | 7861957 |
| 22 | 9761335 |
| 23 | 11913115 |
| 24 | 13695055 |
| 25 | 16489633 |
| 26 | 19439797 |
| 27 | 22464883 |
| 28 | 25997329 |
| 29 | 30860593 |
| 30 | 33866305 |
[19,301,1753,6913,17713,38497,80473,139927,225595, 356329,549967,756901,1113283,1474867,1913365, 2620789,3418081,4119175,5428993,6453235,7861957, 9761335,11913115,13695055,16489633,19439797, 22464883,25997329,30860593,33866305] |