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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 13 |
| 3 | 37 |
| 4 | 91 |
| 5 | 199 |
| 6 | 397 |
| 7 | 736 |
| 8 | 1285 |
| 9 | 2134 |
| 10 | 3397 |
| 11 | 5215 |
| 12 | 7759 |
| 13 | 11233 |
| 14 | 15877 |
| 15 | 21970 |
| 16 | 29833 |
| 17 | 39832 |
| 18 | 52381 |
| 19 | 67945 |
| 20 | 87043 |
| 21 | 110251 |
| 22 | 138205 |
| 23 | 171604 |
| 24 | 211213 |
| 25 | 257866 |
| 26 | 312469 |
| 27 | 376003 |
| 28 | 449527 |
| 29 | 534181 |
| 30 | 631189 |
| 31 | 741862 |
| 32 | 867601 |
| 33 | 1009900 |
| 34 | 1170349 |
| 35 | 1350637 |
[4,13,37,91,199,397,736,1285,2134,3397,5215,7759, 11233,15877,21970,29833,39832,52381,67945,87043, 110251,138205,171604,211213,257866,312469,376003, 449527,534181,631189,741862,867601,1009900, 1170349,1350637] |