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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 8 |
| 3 | 36 |
| 4 | 120 |
| 5 | 330 |
| 6 | 792 |
| 7 | 1716 |
| 8 | 3432 |
| 9 | 6435 |
| 10 | 11439 |
| 11 | 19433 |
| 12 | 31732 |
| 13 | 50016 |
| 14 | 76350 |
| 15 | 113178 |
| 16 | 163284 |
| 17 | 229713 |
| 18 | 315645 |
| 19 | 424215 |
| 20 | 558279 |
| 21 | 720147 |
| 22 | 911304 |
| 23 | 1132140 |
| 24 | 1381710 |
| 25 | 1657545 |
| 26 | 1955535 |
| 27 | 2269905 |
| 28 | 2593305 |
| 29 | 2917035 |
| 30 | 3231405 |
| 31 | 3526195 |
| 32 | 3791180 |
| 33 | 4016685 |
| 34 | 4194135 |
| 35 | 4316565 |
| 36 | 4379055 |
| 37 | 4379055 |
| 38 | 4316565 |
| 39 | 4194135 |
| 40 | 4016685 |
| 41 | 3791180 |
| 42 | 3526195 |
| 43 | 3231405 |
| 44 | 2917035 |
| 45 | 2593305 |
| 46 | 2269905 |
| 47 | 1955535 |
| 48 | 1657545 |
| 49 | 1381710 |
| 50 | 1132140 |
| 51 | 911304 |
| 52 | 720147 |
| 53 | 558279 |
| 54 | 424215 |
| 55 | 315645 |
| 56 | 229713 |
| 57 | 163284 |
| 58 | 113178 |
| 59 | 76350 |
| 60 | 50016 |
| 61 | 31732 |
| 62 | 19433 |
| 63 | 11439 |
| 64 | 6435 |
| 65 | 3432 |
| 66 | 1716 |
| 67 | 792 |
| 68 | 330 |
| 69 | 120 |
| 70 | 36 |
| 71 | 8 |
| 72 | 1 |
[1,8,36,120,330,792,1716,3432,6435,11439,19433, 31732,50016,76350,113178,163284,229713,315645, 424215,558279,720147,911304,1132140,1381710, 1657545,1955535,2269905,2593305,2917035,3231405, 3526195,3791180,4016685,4194135,4316565,4379055, 4379055,4316565,4194135,4016685,3791180,3526195, 3231405,2917035,2593305,2269905,1955535,1657545, 1381710,1132140,911304,720147,558279,424215, 315645,229713,163284,113178,76350,50016,31732, 19433,11439,6435,3432,1716,792,330,120,36,8,1] |