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A261788 as a simple table

n a(n)
0 1
1 2
2 5
3 12
4 30
5 81
6 224
7 626
8 1747
9 4909
10 13811
11 38934
12 109889
13 310666
14 880125
15 2500221
16 7125406
17 20376598
18 58472481
19 168349612
20 486198698 

[1,2,5,12,30,81,224,626,1747,4909,13811,38934,
 109889,310666,880125,2500221,7125406,20376598,
 58472481,168349612,486198698]

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Last modified April 23 12:08 EDT 2024. Contains 371912 sequences. (Running on oeis4.)