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A260011 as a simple table

n a(n)
1 209
2 578
3 2492
4 8450
5 25600
6 84050
7 292422
8 985608
9 3251280
10 10857800
11 36602762
12 122774450
13 410260884
14 1373718528
15 4607045940
16 15437704898
17 51696499120
18 173176718162
19 580275938368
20 1944096211250
21 6512576848570
22 21817926896768

[209,578,2492,8450,25600,84050,292422,985608,
 3251280,10857800,36602762,122774450,410260884,
 1373718528,4607045940,15437704898,51696499120,
 173176718162,580275938368,1944096211250,
 6512576848570,21817926896768]

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)