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A215494 as a simple table

n a(n)
1 7
2 21
3 70
4 245
5 882
6 3234
7 12005
8 44933
9 169099
10 638666
11 2417807
12 9167018
13 34790490
14 132119827
15 501941055
16 1907443237
17 7249766678
18 27557748813
19 104759610858
20 398257159370
21 1514069805269
22 5756205681709
23 21884262613787
24 83201447389466
25 316323894905207

[7,21,70,245,882,3234,12005,44933,169099,638666,
 2417807,9167018,34790490,132119827,501941055,
 1907443237,7249766678,27557748813,104759610858,
 398257159370,1514069805269,5756205681709,
 21884262613787,83201447389466,316323894905207]

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Last modified April 23 14:32 EDT 2024. Contains 371914 sequences. (Running on oeis4.)