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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 13 |
| 2 | 63 |
| 3 | 203 |
| 4 | 518 |
| 5 | 1134 |
| 6 | 2226 |
| 7 | 4026 |
| 8 | 6831 |
| 9 | 11011 |
| 10 | 17017 |
| 11 | 25389 |
| 12 | 36764 |
| 13 | 51884 |
| 14 | 71604 |
| 15 | 96900 |
| 16 | 128877 |
| 17 | 168777 |
| 18 | 217987 |
| 19 | 278047 |
| 20 | 350658 |
| 21 | 437690 |
| 22 | 541190 |
| 23 | 663390 |
| 24 | 806715 |
| 25 | 973791 |
| 26 | 1167453 |
| 27 | 1390753 |
| 28 | 1646968 |
| 29 | 1939608 |
| 30 | 2272424 |
| 31 | 2649416 |
| 32 | 3074841 |
| 33 | 3553221 |
| 34 | 4089351 |
| 35 | 4688307 |
| 36 | 5355454 |
| 37 | 6096454 |
[1,13,63,203,518,1134,2226,4026,6831,11011,17017, 25389,36764,51884,71604,96900,128877,168777, 217987,278047,350658,437690,541190,663390,806715, 973791,1167453,1390753,1646968,1939608,2272424, 2649416,3074841,3553221,4089351,4688307,5355454, 6096454] |