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A183276 as a simple table

n a(n)
1 1
2 4
3 11
4 26
5 60
6 132
7 290
8 620
9 1322
10 2777
11 5848
12 12169
13 25419
14 52590
15 109375
16 225532
17 467758
18 962536
19 1993088
20 4096214
21 8473290
22 17401047
23 35973146
24 73841057
25 152593325
26 313133216
27 646942003
28 1327337686
29 2741920392
30 5625006348

[1,4,11,26,60,132,290,620,1322,2777,5848,12169,
 25419,52590,109375,225532,467758,962536,1993088,
 4096214,8473290,17401047,35973146,73841057,
 152593325,313133216,646942003,1327337686,
 2741920392,5625006348]

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Last modified July 25 16:03 EDT 2021. Contains 346291 sequences. (Running on oeis4.)