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A178320 as a simple table

n a(n)
0 1
1 2
2 6
3 14
4 35
5 85
6 208
7 508
8 1241
9 3032
10 7407
11 18096
12 44209
13 108005
14 263861
15 644625
16 1574849
17 3847430
18 9399452
19 22963302
20 56100424
21 137055967
22 334834156
23 818015548
24 1998450352
25 4882307945
26 11927707309
27 29139948412
28 71190260748

[1,2,6,14,35,85,208,508,1241,3032,7407,18096,
 44209,108005,263861,644625,1574849,3847430,
 9399452,22963302,56100424,137055967,334834156,
 818015548,1998450352,4882307945,11927707309,
 29139948412,71190260748]

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Last modified April 20 03:02 EDT 2021. Contains 343121 sequences. (Running on oeis4.)