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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 61 |
| 3 | 62 |
| 4 | 65 |
| 5 | 66 |
| 6 | 67 |
| 7 | 69 |
| 8 | 601 |
| 9 | 602 |
| 10 | 606 |
| 11 | 607 |
| 12 | 609 |
| 13 | 610 |
| 14 | 611 |
| 15 | 613 |
| 16 | 614 |
| 17 | 615 |
| 18 | 617 |
| 19 | 618 |
| 20 | 619 |
| 21 | 622 |
| 22 | 623 |
| 23 | 626 |
| 24 | 627 |
| 25 | 629 |
| 26 | 631 |
| 27 | 633 |
| 28 | 634 |
| 29 | 635 |
| 30 | 638 |
| 31 | 641 |
| 32 | 642 |
| 33 | 643 |
| 34 | 645 |
| 35 | 646 |
| 36 | 647 |
| 37 | 649 |
| 38 | 651 |
| 39 | 653 |
| 40 | 654 |
| 41 | 655 |
| 42 | 658 |
| 43 | 659 |
| 44 | 661 |
| 45 | 662 |
| 46 | 663 |
| 47 | 665 |
| 48 | 667 |
| 49 | 669 |
| 50 | 670 |
| 51 | 671 |
| 52 | 673 |
| 53 | 674 |
[6,61,62,65,66,67,69,601,602,606,607,609,610,611, 613,614,615,617,618,619,622,623,626,627,629,631, 633,634,635,638,641,642,643,645,646,647,649,651, 653,654,655,658,659,661,662,663,665,667,669,670, 671,673,674] |