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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 42 |
| 3 | 152 |
| 4 | 462 |
| 5 | 1088 |
| 6 | 2128 |
| 7 | 3850 |
| 8 | 6474 |
| 9 | 10126 |
| 10 | 15224 |
| 11 | 22180 |
| 12 | 30900 |
| 13 | 42164 |
| 14 | 56514 |
| 15 | 73816 |
| 16 | 94984 |
| 17 | 120700 |
| 18 | 150836 |
| 19 | 186756 |
| 20 | 228696 |
| 21 | 276618 |
| 22 | 332204 |
| 23 | 396444 |
| 24 | 467948 |
| 25 | 549504 |
| 26 | 642000 |
| 27 | 744978 |
| 28 | 859846 |
| 29 | 988550 |
| 30 | 1129542 |
| 31 | 1286278 |
| 32 | 1458874 |
| 33 | 1646896 |
[0,42,152,462,1088,2128,3850,6474,10126,15224, 22180,30900,42164,56514,73816,94984,120700,150836, 186756,228696,276618,332204,396444,467948,549504, 642000,744978,859846,988550,1129542,1286278, 1458874,1646896] |