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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 3 |
| 5 | 3 |
| 6 | 4 |
| 7 | 5 |
| 8 | 6 |
| 9 | 7 |
| 10 | 9 |
| 11 | 12 |
| 12 | 12 |
| 13 | 17 |
| 14 | 20 |
| 15 | 22 |
| 16 | 28 |
| 17 | 35 |
| 18 | 39 |
| 19 | 48 |
| 20 | 55 |
| 21 | 65 |
| 22 | 79 |
| 23 | 90 |
| 24 | 105 |
| 25 | 121 |
| 26 | 143 |
| 27 | 166 |
| 28 | 190 |
| 29 | 219 |
| 30 | 254 |
| 31 | 290 |
| 32 | 332 |
| 33 | 382 |
| 34 | 436 |
| 35 | 493 |
| 36 | 567 |
| 37 | 637 |
| 38 | 729 |
| 39 | 824 |
| 40 | 931 |
| 41 | 1052 |
| 42 | 1186 |
| 43 | 1334 |
| 44 | 1504 |
| 45 | 1691 |
| 46 | 1894 |
| 47 | 2123 |
| 48 | 2380 |
| 49 | 2664 |
| 50 | 2968 |
| 51 | 3319 |
| 52 | 3704 |
| 53 | 4119 |
| 54 | 4586 |
| 55 | 5110 |
[1,1,2,2,3,3,4,5,6,7,9,12,12,17,20,22,28,35,39,48, 55,65,79,90,105,121,143,166,190,219,254,290,332, 382,436,493,567,637,729,824,931,1052,1186,1334, 1504,1691,1894,2123,2380,2664,2968,3319,3704,4119, 4586,5110] |