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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 6 |
| 6 | 9 |
| 7 | 12 |
| 8 | 17 |
| 9 | 22 |
| 10 | 27 |
| 11 | 34 |
| 12 | 41 |
| 13 | 48 |
| 14 | 57 |
| 15 | 66 |
| 16 | 75 |
| 17 | 86 |
| 18 | 97 |
| 19 | 108 |
| 20 | 121 |
| 21 | 134 |
| 22 | 147 |
| 23 | 162 |
| 24 | 177 |
| 25 | 192 |
| 26 | 209 |
| 27 | 226 |
| 28 | 243 |
| 29 | 262 |
| 30 | 281 |
| 31 | 300 |
| 32 | 321 |
| 33 | 342 |
| 34 | 363 |
| 35 | 386 |
| 36 | 409 |
| 37 | 432 |
| 38 | 457 |
| 39 | 482 |
| 40 | 507 |
| 41 | 534 |
| 42 | 561 |
| 43 | 588 |
| 44 | 617 |
| 45 | 646 |
| 46 | 675 |
| 47 | 706 |
| 48 | 737 |
| 49 | 768 |
| 50 | 801 |
| 51 | 834 |
| 52 | 867 |
| 53 | 902 |
| 54 | 937 |
| 55 | 972 |
| 56 | 1009 |
| 57 | 1046 |
[0,0,1,2,4,6,9,12,17,22,27,34,41,48,57,66,75,86, 97,108,121,134,147,162,177,192,209,226,243,262, 281,300,321,342,363,386,409,432,457,482,507,534, 561,588,617,646,675,706,737,768,801,834,867,902, 937,972,1009,1046] |