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A083845 as a simple table

n a(n)
1 2
2 6
3 26
4 94
5 314
6 986
7 3160
8 9990
9 31614
10 99996
11 316206
12 999960
13 3162246
14 9999960
15 31622764
16 99999966
17 316227734
18 999999924
19 3162277654
20 9999999956
21 31622776500
22 99999999964
23 316227766006
24 999999999886
25 3162277660140

[2,6,26,94,314,986,3160,9990,31614,99996,316206,
 999960,3162246,9999960,31622764,99999966,
 316227734,999999924,3162277654,9999999956,
 31622776500,99999999964,316227766006,999999999886,
 3162277660140]

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Last modified April 23 05:37 EDT 2024. Contains 371906 sequences. (Running on oeis4.)