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A157706 as a simple table

n a(n)
2 7
3 75
4 385
5 1365
6 3850
7 9282
8 19950
9 39270
10 72105
11 125125
12 207207
13 329875
14 507780
15 759220
16 1106700
17 1577532
18 2204475
19 3026415
20 4089085
21 5445825
22 7158382
23 9297750
24 11945050
25 15192450
26 19144125
27 23917257

[7,75,385,1365,3850,9282,19950,39270,72105,125125,
 207207,329875,507780,759220,1106700,1577532,
 2204475,3026415,4089085,5445825,7158382,9297750,
 11945050,15192450,19144125,23917257]

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Last modified February 8 14:04 EST 2016. Contains 268098 sequences.