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A000719 as a simple table

n a(n)
0 0
1 0
2 1
3 2
4 5
5 13
6 44
7 191
8 1229
9 13588
10 288597
11 12297299
12 1031342116
13 166123498733
14 50668194387427
15 29104827043066808
16 31455591302381718651
17 64032471448906164191208
18 245999896712611657677614268
19 1787823725136869060356731751124

[0,0,1,2,5,13,44,191,1229,13588,288597,12297299,
 1031342116,166123498733,50668194387427,
 29104827043066808,31455591302381718651,
 64032471448906164191208,
 245999896712611657677614268,
 1787823725136869060356731751124]

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)