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A171276 as a simple table

n a(n)
1 2
2 4
3 7
4 15
5 23
6 48
7 87
8 157
9 274
10 560
11 933
12 1822
13 3203
14 5993
15 10478
16 19922
17 34214
18 63331
19 110943
20 203812
21 352455
22 646274
23 1109722
24 2023785
25 3479398
26 6260690
27 10787932
28 19322649
29 33171504
30 59007624
31 100974521
32 179426764
33 306323274

[2,4,7,15,23,48,87,157,274,560,933,1822,3203,5993,
 10478,19922,34214,63331,110943,203812,352455,
 646274,1109722,2023785,3479398,6260690,10787932,
 19322649,33171504,59007624,100974521,179426764,
 306323274]

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Last modified November 19 11:09 EST 2019. Contains 329319 sequences. (Running on oeis4.)