| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 1 |
| 6 | 4 |
| 7 | 4 |
| 8 | 8 |
| 9 | 10 |
| 10 | 15 |
| 11 | 15 |
| 12 | 26 |
| 13 | 26 |
| 14 | 33 |
| 15 | 39 |
| 16 | 50 |
| 17 | 50 |
| 18 | 66 |
| 19 | 66 |
| 20 | 83 |
| 21 | 91 |
| 22 | 102 |
| 23 | 102 |
| 24 | 131 |
| 25 | 135 |
| 26 | 148 |
| 27 | 158 |
| 28 | 181 |
| 29 | 181 |
| 30 | 216 |
| 31 | 216 |
| 32 | 242 |
| 33 | 254 |
| 34 | 271 |
| 35 | 281 |
| 36 | 328 |
| 37 | 328 |
| 38 | 347 |
| 39 | 361 |
| 40 | 404 |
| 41 | 404 |
| 42 | 451 |
| 43 | 451 |
| 44 | 486 |
| 45 | 514 |
| 46 | 537 |
| 47 | 537 |
| 48 | 604 |
| 49 | 610 |
| 50 | 648 |
| 51 | 666 |
| 52 | 707 |
| 53 | 707 |
| 54 | 766 |
| 55 | 780 |
| 56 | 837 |
| 57 | 857 |
| 58 | 886 |
| 59 | 886 |
| 60 | 983 |
| 61 | 983 |
[0,0,0,1,1,4,4,8,10,15,15,26,26,33,39,50,50,66,66, 83,91,102,102,131,135,148,158,181,181,216,216,242, 254,271,281,328,328,347,361,404,404,451,451,486, 514,537,537,604,610,648,666,707,707,766,780,837, 857,886,886,983,983] |