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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 6 |
| 6 | 6 |
| 7 | 13 |
| 8 | 13 |
| 9 | 13 |
| 10 | 13 |
| 11 | 24 |
| 12 | 24 |
| 13 | 37 |
| 14 | 37 |
| 15 | 37 |
| 16 | 37 |
| 17 | 54 |
| 18 | 54 |
| 19 | 73 |
| 20 | 73 |
| 21 | 73 |
| 22 | 73 |
| 23 | 96 |
| 24 | 96 |
| 25 | 121 |
| 26 | 121 |
| 27 | 121 |
| 28 | 121 |
| 29 | 150 |
| 30 | 150 |
| 31 | 181 |
| 32 | 181 |
| 33 | 181 |
| 34 | 181 |
| 35 | 216 |
| 36 | 216 |
| 37 | 253 |
| 38 | 253 |
| 39 | 253 |
| 40 | 253 |
| 41 | 294 |
| 42 | 294 |
| 43 | 337 |
| 44 | 337 |
| 45 | 337 |
| 46 | 337 |
| 47 | 384 |
| 48 | 384 |
| 49 | 433 |
| 50 | 433 |
| 51 | 433 |
| 52 | 433 |
| 53 | 486 |
| 54 | 486 |
| 55 | 541 |
| 56 | 541 |
| 57 | 541 |
| 58 | 541 |
| 59 | 600 |
| 60 | 600 |
| 61 | 661 |
[1,1,1,1,6,6,13,13,13,13,24,24,37,37,37,37,54,54, 73,73,73,73,96,96,121,121,121,121,150,150,181,181, 181,181,216,216,253,253,253,253,294,294,337,337, 337,337,384,384,433,433,433,433,486,486,541,541, 541,541,600,600,661] |