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A221890 as a simple table
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 8 |
| 9 | 0 |
| 10 | 0 |
| 11 | 0 |
| 12 | 37 |
| 13 | 0 |
| 14 | 0 |
| 15 | 0 |
| 16 | 0 |
| 17 | 169 |
| 18 | 202 |
| 19 | 90 |
| 20 | 0 |
| 21 | 0 |
| 22 | 0 |
| 23 | 811 |
| 24 | 2722 |
| 25 | 4137 |
| 26 | 204 |
| 27 | 0 |
| 28 | 0 |
| 29 | 0 |
| 30 | 3878 |
| 31 | 31881 |
| 32 | 154458 |
| 33 | 56313 |
| 34 | 1297 |
| 35 | 0 |
| 36 | 0 |
| 37 | 0 |
| 38 | 18502 |
| 39 | 416630 |
| 40 | 5488703 |
| 41 | 5408074 |
| 42 | 760578 |
| 43 | 4608 |
| 44 | 0 |
| 45 | 0 |
| 46 | 0 |
| 47 | 88302 |
| 48 | 5496803 |
| 49 | 201212852 |
| 50 | 537483861 |
| 51 | 216702488 |
| 52 | 10743570 |
[0,0,0,0,0,0,0,8,0,0,0,37,0,0,0,0,169,202,90,0,0, 0,811,2722,4137,204,0,0,0,3878,31881,154458,56313, 1297,0,0,0,18502,416630,5488703,5408074,760578, 4608,0,0,0,88302,5496803,201212852,537483861, 216702488,10743570] |