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A148679 as a simple table

n a(n)
0 1
1 1
2 3
3 7
4 21
5 73
6 229
7 777
8 2687
9 9531
10 35431
11 128883
12 478235
13 1784839
14 6775523
15 26085247
16 100114965
17 388112537
18 1505030269
19 5897848369
20 23250175625
21 91758487101
22 364379639057
23 1446569914757
24 5780001284701
25 23157563260401
26 93000598894069
27 374940517375609
28 1511864141405941
29 6121906769243097

[1,1,3,7,21,73,229,777,2687,9531,35431,128883,
 478235,1784839,6775523,26085247,100114965,
 388112537,1505030269,5897848369,23250175625,
 91758487101,364379639057,1446569914757,
 5780001284701,23157563260401,93000598894069,
 374940517375609,1511864141405941,6121906769243097]

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Last modified July 5 17:04 EDT 2020. Contains 335473 sequences. (Running on oeis4.)