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A108639 as a simple table

n a(n)
1 1
2 3
3 6
4 13
5 29
6 77
7 229
8 771
9 2863
10 11573
11 50365
12 234161
13 1156039
14 6031751
15 33130187
16 190929778
17 1151198268
18 7243777234
19 47462906927
20 323188163753
21 2282922216819
22 16701529748621
23 126359471558613
24 987316752551419

[1,3,6,13,29,77,229,771,2863,11573,50365,234161,
 1156039,6031751,33130187,190929778,1151198268,
 7243777234,47462906927,323188163753,2282922216819,
 16701529748621,126359471558613,987316752551419]

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Last modified April 24 19:06 EDT 2024. Contains 371962 sequences. (Running on oeis4.)