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A030517 as a simple table

n a(n)
1 1
2 2
3 13
4 52
5 273
6 1302
7 6573
8 32552
9 163073
10 813802
11 4070573
12 20345052
13 101733073
14 508626302
15 2543170573
16 12715657552
17 63578483073
18 317891438802
19 1589458170573
20 7947285970052
21 39736434733073
22 198682149251302
23 993410770670573
24 4967053731282552

[1,2,13,52,273,1302,6573,32552,163073,813802,
 4070573,20345052,101733073,508626302,2543170573,
 12715657552,63578483073,317891438802,
 1589458170573,7947285970052,39736434733073,
 198682149251302,993410770670573,4967053731282552]

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Last modified July 5 23:36 EDT 2020. Contains 335475 sequences. (Running on oeis4.)