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A318857 as a simple table

n a(n)
0 0
1 1
2 1
3 2
4 4
5 9
6 20
7 48
8 115
9 286
10 719
11 1842
12 4765
13 12484
14 32968
15 87798
16 235346
17 634752
18 1720897
19 4687949
20 12824195
21 35216118
22 97039045
23 268237121
24 743594937
25 2066803841
26 5758576675
27 16080698759
28 44998355630
29 126161517745
30 354354779794
31 996963790045
32 2809334906744
33 7928088014833
34 22404525682620

[0,1,1,2,4,9,20,48,115,286,719,1842,4765,12484,
 32968,87798,235346,634752,1720897,4687949,
 12824195,35216118,97039045,268237121,743594937,
 2066803841,5758576675,16080698759,44998355630,
 126161517745,354354779794,996963790045,
 2809334906744,7928088014833,22404525682620]

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Last modified September 24 21:51 EDT 2022. Contains 356949 sequences. (Running on oeis4.)