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A294824 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 21
5 77
6 285
7 1053
8 3875
9 14212
10 52021
11 190301
12 696532
13 2553047
14 9377034
15 34525630
16 127466481
17 471935813
18 1752332838
19 6525032251
20 24363932865
21 91214649344
22 342358204917
23 1288067835421
24 4857138874476
25 18354766803127
26 69500599635905
27 263661684179088
28 1002016365217651

[1,1,2,6,21,77,285,1053,3875,14212,52021,190301,
 696532,2553047,9377034,34525630,127466481,
 471935813,1752332838,6525032251,24363932865,
 91214649344,342358204917,1288067835421,
 4857138874476,18354766803127,69500599635905,
 263661684179088,1002016365217651]

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Last modified May 28 02:19 EDT 2020. Contains 334671 sequences. (Running on oeis4.)