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A303840 as a simple table

n a(n)
1 0
2 1
3 1
4 2
5 4
6 10
7 24
8 63
9 164
10 444
11 1204
12 3328
13 9233
14 25865
15 72734
16 205656
17 583320
18 1660318
19 4737540
20 13551165
21 38837535
22 111512229
23 320681604
24 923528963
25 2663057582
26 7688068638
27 22218350303
28 64272720521
29 186091334380
30 539237928902
31 1563731491958
32 4537823968645
33 13176960639940
34 38286514506439
35 111306880581963

[0,1,1,2,4,10,24,63,164,444,1204,3328,9233,25865,
 72734,205656,583320,1660318,4737540,13551165,
 38837535,111512229,320681604,923528963,2663057582,
 7688068638,22218350303,64272720521,186091334380,
 539237928902,1563731491958,4537823968645,
 13176960639940,38286514506439,111306880581963]

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Last modified April 16 05:26 EDT 2021. Contains 343030 sequences. (Running on oeis4.)