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A172134 as a simple table

n a(n)
1 0
2 4
3 36
4 276
5 1360
6 4752
7 13340
8 32084
9 68796
10 135040
11 247152
12 427380
13 705144
14 1118416
15 1715220
16 2555252
17 3711620
18 5272704
19 7344136
20 10050900
21 13539552
22 17980560
23 23570764
24 30535956
25 39133580
26 49655552
27 62431200
28 77830324

[0,4,36,276,1360,4752,13340,32084,68796,135040,
 247152,427380,705144,1118416,1715220,2555252,
 3711620,5272704,7344136,10050900,13539552,
 17980560,23570764,30535956,39133580,49655552,
 62431200,77830324]

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Last modified November 20 05:07 EST 2019. Contains 329323 sequences. (Running on oeis4.)