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A279888 as a simple table

n a(n)
1 0
2 1
3 42
4 569
5 4250
6 22006
7 88004
8 293369
9 845358
10 2186376
11 5145646
12 11282966
13 23143198
14 45179324
15 83905292
16 150271993
17 258816840
18 433786483
19 704268402
20 1119633944
21 1733618768
22 2640037170
23 3931060364
24 5777392406
25 8325691750
26 11873200964
27 16643954724
28 23133008124

[0,1,42,569,4250,22006,88004,293369,845358,
 2186376,5145646,11282966,23143198,45179324,
 83905292,150271993,258816840,433786483,704268402,
 1119633944,1733618768,2640037170,3931060364,
 5777392406,8325691750,11873200964,16643954724,
 23133008124]

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Last modified April 24 00:30 EDT 2024. Contains 371917 sequences. (Running on oeis4.)