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| n | a(n) |
|---|---|
| -1 | 1 |
| 0 | 4 |
| 1 | 10 |
| 2 | 24 |
| 3 | 47 |
| 4 | 84 |
| 5 | 150 |
| 6 | 248 |
| 7 | 403 |
| 8 | 648 |
| 9 | 1002 |
| 10 | 1536 |
| 11 | 2316 |
| 12 | 3420 |
| 13 | 5004 |
| 14 | 7224 |
| 15 | 10309 |
| 16 | 14592 |
| 17 | 20456 |
| 18 | 28440 |
| 19 | 39240 |
| 20 | 53736 |
| 21 | 73102 |
| 22 | 98808 |
| 23 | 132779 |
| 24 | 177444 |
| 25 | 235868 |
| 26 | 312024 |
| 27 | 410785 |
| 28 | 538368 |
| 29 | 702630 |
| 30 | 913208 |
| 31 | 1182342 |
| 32 | 1525200 |
| 33 | 1960418 |
| 34 | 2511360 |
| 35 | 3206675 |
| 36 | 4081576 |
| 37 | 5179670 |
| 38 | 6554112 |
| 39 | 8270086 |
[1,4,10,24,47,84,150,248,403,648,1002,1536,2316, 3420,5004,7224,10309,14592,20456,28440,39240, 53736,73102,98808,132779,177444,235868,312024, 410785,538368,702630,913208,1182342,1525200, 1960418,2511360,3206675,4081576,5179670,6554112, 8270086] |