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A305577 as a simple table

n a(n)
0 1
1 2
2 5
3 10
4 26
5 58
6 167
7 414
8 1324
9 3606
10 12729
11 37674
12 145578
13 463770
14 1944879
15 6614190
16 29852856
17 107616150
18 518782545
19 1970493210
20 10077228270
21 40125873690
22 216425656215
23 899557170750
24 5091758227620
25 22011865939350
26 130202223160905
27 583641857191050
28 3594820517111250

[1,2,5,10,26,58,167,414,1324,3606,12729,37674,
 145578,463770,1944879,6614190,29852856,107616150,
 518782545,1970493210,10077228270,40125873690,
 216425656215,899557170750,5091758227620,
 22011865939350,130202223160905,583641857191050,
 3594820517111250]

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Last modified August 10 08:22 EDT 2020. Contains 336368 sequences. (Running on oeis4.)