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A293005 as a simple table

n a(n)
0 0
1 1
2 4
3 12
4 34
5 94
6 258
7 706
8 1930
9 5274
10 14410
11 39370
12 107562
13 293866
14 802858
15 2193450
16 5992618
17 16372138
18 44729514
19 122203306
20 333865642
21 912137898
22 2492007082
23 6808289962
24 18600594090
25 50817768106
26 138836724394
27 379308985002
28 1036291418794
29 2831200807594

[0,1,4,12,34,94,258,706,1930,5274,14410,39370,
 107562,293866,802858,2193450,5992618,16372138,
 44729514,122203306,333865642,912137898,2492007082,
 6808289962,18600594090,50817768106,138836724394,
 379308985002,1036291418794,2831200807594]

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Last modified April 25 23:48 EDT 2019. Contains 322465 sequences. (Running on oeis4.)