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A007098 as a simple table

n a(n)
0 1
1 1
2 3
3 6
4 19
5 47
6 140
7 374
8 1082
9 2998
10 8574
11 24130
12 68876
13 195587
14 559076
15 1596651
16 4575978
17 13122219
18 37711998
19 108488765
20 312577827
21 901531937
22 2603264050
23 7524331268
24 21768850808
25 63032844756
26 182662328945
27 529722408615
28 1537261773438

[1,1,3,6,19,47,140,374,1082,2998,8574,24130,68876,
 195587,559076,1596651,4575978,13122219,37711998,
 108488765,312577827,901531937,2603264050,
 7524331268,21768850808,63032844756,182662328945,
 529722408615,1537261773438]

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Last modified April 24 12:31 EDT 2024. Contains 371937 sequences. (Running on oeis4.)