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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 655 |
| 3 | 1461 |
| 4 | 1642 |
| 5 | 2361 |
| 6 | 3442 |
| 7 | 6550 |
| 8 | 14610 |
| 9 | 16420 |
| 10 | 23610 |
| 11 | 34420 |
| 12 | 65500 |
| 13 | 146100 |
| 14 | 164200 |
| 15 | 236100 |
| 16 | 344200 |
| 17 | 655000 |
| 18 | 1461000 |
| 19 | 1642000 |
| 20 | 2361000 |
| 21 | 3442000 |
| 22 | 6550000 |
| 23 | 14610000 |
| 24 | 16420000 |
| 25 | 23610000 |
| 26 | 34420000 |
| 27 | 65500000 |
| 28 | 146100000 |
| 29 | 164200000 |
| 30 | 236100000 |
| 31 | 344200000 |
[0,655,1461,1642,2361,3442,6550,14610,16420,23610, 34420,65500,146100,164200,236100,344200,655000, 1461000,1642000,2361000,3442000,6550000,14610000, 16420000,23610000,34420000,65500000,146100000, 164200000,236100000,344200000] |