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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 6 |
| 7 | 8 |
| 8 | 11 |
| 9 | 14 |
| 10 | 19 |
| 11 | 23 |
| 12 | 28 |
| 13 | 33 |
| 14 | 37 |
| 15 | 46 |
| 16 | 51 |
| 17 | 56 |
| 18 | 66 |
| 19 | 73 |
| 20 | 80 |
| 21 | 88 |
| 22 | 96 |
| 23 | 108 |
| 24 | 118 |
| 25 | 126 |
| 26 | 134 |
| 27 | 148 |
| 28 | 159 |
| 29 | 172 |
| 30 | 183 |
| 31 | 197 |
| 32 | 207 |
| 33 | 220 |
| 34 | 234 |
| 35 | 249 |
| 36 | 263 |
| 37 | 280 |
| 38 | 297 |
| 39 | 309 |
| 40 | 323 |
| 41 | 338 |
| 42 | 356 |
| 43 | 376 |
| 44 | 393 |
| 45 | 412 |
| 46 | 427 |
| 47 | 449 |
| 48 | 465 |
| 49 | 482 |
| 50 | 505 |
| 51 | 527 |
| 52 | 544 |
| 53 | 561 |
| 54 | 582 |
| 55 | 606 |
| 56 | 634 |
| 57 | 658 |
[0,0,1,2,4,6,8,11,14,19,23,28,33,37,46,51,56,66, 73,80,88,96,108,118,126,134,148,159,172,183,197, 207,220,234,249,263,280,297,309,323,338,356,376, 393,412,427,449,465,482,505,527,544,561,582,606, 634,658] |