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A186865 as a simple table

n a(n)
1 0
2 0
3 2240
4 22672
5 74072
6 156484
7 268048
8 408764
9 578632
10 777652
11 1005824
12 1263148
13 1549624
14 1865252
15 2210032
16 2583964
17 2987048
18 3419284
19 3880672
20 4371212
21 4890904
22 5439748
23 6017744
24 6624892
25 7261192
26 7926644
27 8621248
28 9345004
29 10097912
30 10879972
31 11691184

[0,0,2240,22672,74072,156484,268048,408764,578632,
 777652,1005824,1263148,1549624,1865252,2210032,
 2583964,2987048,3419284,3880672,4371212,4890904,
 5439748,6017744,6624892,7261192,7926644,8621248,
 9345004,10097912,10879972,11691184]

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Last modified May 7 05:04 EDT 2024. Contains 372300 sequences. (Running on oeis4.)