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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 10 |
| 3 | 54 |
| 4 | 168 |
| 5 | 400 |
| 6 | 810 |
| 7 | 1470 |
| 8 | 2464 |
| 9 | 3888 |
| 10 | 5850 |
| 11 | 8470 |
| 12 | 11880 |
| 13 | 16224 |
| 14 | 21658 |
| 15 | 28350 |
| 16 | 36480 |
| 17 | 46240 |
| 18 | 57834 |
| 19 | 71478 |
| 20 | 87400 |
| 21 | 105840 |
| 22 | 127050 |
| 23 | 151294 |
| 24 | 178848 |
| 25 | 210000 |
| 26 | 245050 |
| 27 | 284310 |
| 28 | 328104 |
| 29 | 376768 |
| 30 | 430650 |
| 31 | 490110 |
| 32 | 555520 |
| 33 | 627264 |
| 34 | 705738 |
| 35 | 791350 |
| 36 | 884520 |
| 37 | 985680 |
| 38 | 1095274 |
[0,10,54,168,400,810,1470,2464,3888,5850,8470, 11880,16224,21658,28350,36480,46240,57834,71478, 87400,105840,127050,151294,178848,210000,245050, 284310,328104,376768,430650,490110,555520,627264, 705738,791350,884520,985680,1095274] |