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A207702 as a simple table

n a(n)
1 40
2 1600
3 13230
4 61254
5 206910
6 571350
7 1369900
8 2956980
9 5883084
10 10965220
11 19372210
12 32726250
13 53222130
14 83765514
15 128131680
16 191146120
17 278888400
18 398920680
19 560542294
20 775071790
21 1056157830
22 1420120350
23 1886323380

[40,1600,13230,61254,206910,571350,1369900,
 2956980,5883084,10965220,19372210,32726250,
 53222130,83765514,128131680,191146120,278888400,
 398920680,560542294,775071790,1056157830,
 1420120350,1886323380]

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Last modified October 20 16:07 EDT 2021. Contains 348111 sequences. (Running on oeis4.)