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A004250 as a simple table
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 7 |
| 7 | 11 |
| 8 | 17 |
| 9 | 25 |
| 10 | 36 |
| 11 | 50 |
| 12 | 70 |
| 13 | 94 |
| 14 | 127 |
| 15 | 168 |
| 16 | 222 |
| 17 | 288 |
| 18 | 375 |
| 19 | 480 |
| 20 | 616 |
| 21 | 781 |
| 22 | 990 |
| 23 | 1243 |
| 24 | 1562 |
| 25 | 1945 |
| 26 | 2422 |
| 27 | 2996 |
| 28 | 3703 |
| 29 | 4550 |
| 30 | 5588 |
| 31 | 6826 |
| 32 | 8332 |
| 33 | 10126 |
| 34 | 12292 |
| 35 | 14865 |
| 36 | 17958 |
| 37 | 21618 |
| 38 | 25995 |
| 39 | 31165 |
| 40 | 37317 |
| 41 | 44562 |
[0,0,1,2,4,7,11,17,25,36,50,70,94,127,168,222,288, 375,480,616,781,990,1243,1562,1945,2422,2996,3703, 4550,5588,6826,8332,10126,12292,14865,17958,21618, 25995,31165,37317,44562] |