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A047092 as a simple table

n a(n)
1 1
2 2
3 4
4 19
5 60
6 237
7 850
8 3252
9 12168
10 46497
11 177052
12 679745
13 2612226
14 10079515
15 38961906
16 150982379
17 586067980
18 2278999145
19 8874984360
20 34609160383
21 135125659144
22 528166347564
23 2066529185116
24 8093134894351

[1,2,4,19,60,237,850,3252,12168,46497,177052,
 679745,2612226,10079515,38961906,150982379,
 586067980,2278999145,8874984360,34609160383,
 135125659144,528166347564,2066529185116,
 8093134894351]

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Last modified November 17 18:48 EST 2018. Contains 317276 sequences. (Running on oeis4.)