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A112520 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 6
5 21
6 54
7 195
8 573
9 2086
10 6646
11 24289
12 81540
13 299136
14 1040262
15 3832923
16 13660698
17 50572983
18 183450064
19 682447378
20 2507959846
21 9374078232
22 34791088014
23 130624080993
24 488542321116
25 1841890385196
26 6931198308924

[1,1,1,3,6,21,54,195,573,2086,6646,24289,81540,
 299136,1040262,3832923,13660698,50572983,
 183450064,682447378,2507959846,9374078232,
 34791088014,130624080993,488542321116,
 1841890385196,6931198308924]

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Last modified August 13 21:35 EDT 2024. Contains 375144 sequences. (Running on oeis4.)