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A001268 as a simple table

n a(n)
0 0
1 0
2 0
3 0
4 0
5 1
6 11
7 113
8 1099
9 11060
10 118484
11 1366134
12 16970322
13 226574211
14 3240161105
15 49453685911
16 802790789101
17 13815657556958
18 251309386257874
19 4818622686395380
20 97145520138758844
21 2054507019515346789
22 45484006970415223287
23 1052036480881734378541

[0,0,0,0,0,1,11,113,1099,11060,118484,1366134,
 16970322,226574211,3240161105,49453685911,
 802790789101,13815657556958,251309386257874,
 4818622686395380,97145520138758844,
 2054507019515346789,45484006970415223287,
 1052036480881734378541]

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Last modified June 4 22:04 EDT 2024. Contains 373102 sequences. (Running on oeis4.)