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A232580 as a simple table

n a(n)
0 0
1 0
2 0
3 1
4 4
5 12
6 31
7 74
8 168
9 369
10 792
11 1672
12 3487
13 7206
14 14788
15 30185
16 61356
17 124308
18 251199
19 506578
20 1019920
21 2050785
22 4119280
23 8267216
24 16580799
25 33236622
26 66594636
27 133385689
28 267089188
29 534692604
30 1070217247
31 2141780762
32 4285739832
33 8575004241

[0,0,0,1,4,12,31,74,168,369,792,1672,3487,7206,
 14788,30185,61356,124308,251199,506578,1019920,
 2050785,4119280,8267216,16580799,33236622,
 66594636,133385689,267089188,534692604,1070217247,
 2141780762,4285739832,8575004241]

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Last modified May 23 02:30 EDT 2024. Contains 372758 sequences. (Running on oeis4.)