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A019464 as a simple table

n a(n)
0 1
1 1
2 2
3 4
4 6
5 18
6 21
7 84
8 88
9 440
10 445
11 2670
12 2676
13 18732
14 18739
15 149912
16 149920
17 1349280
18 1349289
19 13492890
20 13492900
21 148421900
22 148421911
23 1781062932
24 1781062944
25 23153818272
26 23153818285
27 324153455990
28 324153456004
29 4862301840060
30 4862301840075
31 77796829441200

[1,1,2,4,6,18,21,84,88,440,445,2670,2676,18732,
 18739,149912,149920,1349280,1349289,13492890,
 13492900,148421900,148421911,1781062932,
 1781062944,23153818272,23153818285,324153455990,
 324153456004,4862301840060,4862301840075,
 77796829441200]

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Last modified May 23 15:23 EDT 2024. Contains 372763 sequences. (Running on oeis4.)