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A101169 as a simple table

n a(n)
0 1
1 3
2 9
3 26
4 76
5 221
6 644
7 1875
8 5461
9 15903
10 46314
11 134876
12 392791
13 1143896
14 3331289
15 9701475
16 28252921
17 82278978
18 239615244
19 697814501
20 2032195756
21 5918219771
22 17235212309
23 50192888175
24 146173193506
25 425689839228

[1,3,9,26,76,221,644,1875,5461,15903,46314,134876,
 392791,1143896,3331289,9701475,28252921,82278978,
 239615244,697814501,2032195756,5918219771,
 17235212309,50192888175,146173193506,425689839228]

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Last modified October 1 03:28 EDT 2020. Contains 337441 sequences. (Running on oeis4.)