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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 24 |
| 3 | 138 |
| 4 | 454 |
| 5 | 1130 |
| 6 | 2370 |
| 7 | 4424 |
| 8 | 7588 |
| 9 | 12204 |
| 10 | 18660 |
| 11 | 27390 |
| 12 | 38874 |
| 13 | 53638 |
| 14 | 72254 |
| 15 | 95340 |
| 16 | 123560 |
| 17 | 157624 |
| 18 | 198288 |
| 19 | 246354 |
| 20 | 302670 |
| 21 | 368130 |
| 22 | 443674 |
| 23 | 530288 |
| 24 | 629004 |
| 25 | 740900 |
| 26 | 867100 |
| 27 | 1008774 |
| 28 | 1167138 |
| 29 | 1343454 |
| 30 | 1539030 |
| 31 | 1755220 |
| 32 | 1993424 |
| 33 | 2255088 |
[0,24,138,454,1130,2370,4424,7588,12204,18660, 27390,38874,53638,72254,95340,123560,157624, 198288,246354,302670,368130,443674,530288,629004, 740900,867100,1008774,1167138,1343454,1539030, 1755220,1993424,2255088] |