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A240407 as a simple table

n a(n)
1 2
2 10
3 33
4 139
5 529
6 2105
7 8258
8 32480
9 127944
10 503372
11 1982058
12 7801697
13 30716039
14 120917541
15 476048890
16 1874110143
17 7378197850
18 29046994153
19 114354774523
20 450201581068
21 1772392670851
22 6977710726893
23 27470462435959
24 108148134784975

[2,10,33,139,529,2105,8258,32480,127944,503372,
 1982058,7801697,30716039,120917541,476048890,
 1874110143,7378197850,29046994153,114354774523,
 450201581068,1772392670851,6977710726893,
 27470462435959,108148134784975]

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Last modified August 20 06:04 EDT 2019. Contains 326139 sequences. (Running on oeis4.)