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A265580 as a simple table

n a(n)
0 1
1 0
2 0
3 1
4 1
5 2
6 4
7 7
8 13
9 27
10 54
11 112
12 243
13 538
14 1223
15 2875
16 6909
17 17052
18 43138
19 111686
20 295658
21 799684
22 2207356
23 6213391
24 17820961
25 52042771
26 154640528
27 467254731
28 1434837672
29 4475520062
30 14173115724
31 45548395180
32 148485883443
33 490831193397
34 1644581336531

[1,0,0,1,1,2,4,7,13,27,54,112,243,538,1223,2875,
 6909,17052,43138,111686,295658,799684,2207356,
 6213391,17820961,52042771,154640528,467254731,
 1434837672,4475520062,14173115724,45548395180,
 148485883443,490831193397,1644581336531]

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Last modified August 9 16:21 EDT 2022. Contains 356026 sequences. (Running on oeis4.)