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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 10 |
| 3 | 22 |
| 4 | 43 |
| 5 | 76 |
| 6 | 124 |
| 7 | 190 |
| 8 | 277 |
| 9 | 388 |
| 10 | 526 |
| 11 | 694 |
| 12 | 895 |
| 13 | 1132 |
| 14 | 1408 |
| 15 | 1726 |
| 16 | 2089 |
| 17 | 2500 |
| 18 | 2962 |
| 19 | 3478 |
| 20 | 4051 |
| 21 | 4684 |
| 22 | 5380 |
| 23 | 6142 |
| 24 | 6973 |
| 25 | 7876 |
| 26 | 8854 |
| 27 | 9910 |
| 28 | 11047 |
| 29 | 12268 |
| 30 | 13576 |
| 31 | 14974 |
| 32 | 16465 |
| 33 | 18052 |
| 34 | 19738 |
| 35 | 21526 |
[1,4,10,22,43,76,124,190,277,388,526,694,895,1132, 1408,1726,2089,2500,2962,3478,4051,4684,5380,6142, 6973,7876,8854,9910,11047,12268,13576,14974,16465, 18052,19738,21526] |