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A019241 as a simple table

n a(n)
3 0
4 2
5 2
6 10
7 9
8 16
9 58
10 98
11 196
12 445
13 1107
14 2566
15 6245
16 15883
17 40199
18 101196
19 262535
20 671260
21 1729534
22 4466241
23 11504745
24 29835299
25 77256496
26 200759467
27 523172455
28 1365186585
29 3572926982
30 9369651786
31 24618108658

[0,2,2,10,9,16,58,98,196,445,1107,2566,6245,15883,
 40199,101196,262535,671260,1729534,4466241,
 11504745,29835299,77256496,200759467,523172455,
 1365186585,3572926982,9369651786,24618108658]

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Last modified June 18 18:52 EDT 2019. Contains 324215 sequences. (Running on oeis4.)