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A213411 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 9
5 20
6 45
7 101
8 228
9 514
10 1160
11 2617
12 5906
13 13327
14 30075
15 67868
16 153156
17 345621
18 779953
19 1760094
20 3971951
21 8963378
22 20227382
23 45646511
24 103009086
25 232457449
26 524579615
27 1183802763
28 2671451479
29 6028582814
30 13604518396
31 30700900429
32 69281782713

[1,1,2,4,9,20,45,101,228,514,1160,2617,5906,13327,
 30075,67868,153156,345621,779953,1760094,3971951,
 8963378,20227382,45646511,103009086,232457449,
 524579615,1183802763,2671451479,6028582814,
 13604518396,30700900429,69281782713]

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Last modified January 25 16:42 EST 2020. Contains 331245 sequences. (Running on oeis4.)