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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 12 |
| 8 | 18 |
| 9 | 56 |
| 10 | 81 |
| 11 | 130 |
| 12 | 225 |
| 13 | 396 |
| 14 | 637 |
| 15 | 854 |
| 16 | 2034 |
| 17 | 4059 |
| 18 | 4095 |
| 19 | 5985 |
| 20 | 7650 |
| 21 | 21105 |
| 22 | 31059 |
| 23 | 41998 |
| 24 | 46860 |
| 25 | 83106 |
| 26 | 114129 |
| 27 | 120555 |
| 28 | 150705 |
| 29 | 201285 |
| 30 | 287937 |
| 31 | 338265 |
| 32 | 359757 |
| 33 | 475839 |
| 34 | 512194 |
| 35 | 583825 |
| 36 | 606594 |
| 37 | 627102 |
| 38 | 717025 |
| 39 | 877305 |
| 40 | 922095 |
| 41 | 991590 |
| 42 | 1076355 |
[0,1,2,3,4,6,12,18,56,81,130,225,396,637,854,2034, 4059,4095,5985,7650,21105,31059,41998,46860,83106, 114129,120555,150705,201285,287937,338265,359757, 475839,512194,583825,606594,627102,717025,877305, 922095,991590,1076355] |