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| n | a(n) |
|---|---|
| 1 | 399 |
| 2 | 799 |
| 3 | 1199 |
| 4 | 1599 |
| 5 | 1999 |
| 6 | 2399 |
| 7 | 2799 |
| 8 | 3199 |
| 9 | 3599 |
| 10 | 3999 |
| 11 | 4399 |
| 12 | 4799 |
| 13 | 5199 |
| 14 | 5599 |
| 15 | 5999 |
| 16 | 6399 |
| 17 | 6799 |
| 18 | 7199 |
| 19 | 7599 |
| 20 | 7999 |
| 21 | 8399 |
| 22 | 8799 |
| 23 | 9199 |
| 24 | 9599 |
| 25 | 9999 |
| 26 | 10399 |
| 27 | 10799 |
| 28 | 11199 |
| 29 | 11599 |
| 30 | 11999 |
| 31 | 12399 |
| 32 | 12799 |
| 33 | 13199 |
| 34 | 13599 |
| 35 | 13999 |
| 36 | 14399 |
| 37 | 14799 |
| 38 | 15199 |
[399,799,1199,1599,1999,2399,2799,3199,3599,3999, 4399,4799,5199,5599,5999,6399,6799,7199,7599,7999, 8399,8799,9199,9599,9999,10399,10799,11199,11599, 11999,12399,12799,13199,13599,13999,14399,14799, 15199] |