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A212723 as a simple table

n a(n)
1 31
2 67
3 148
4 322
5 677
6 1439
7 3086
8 6625
9 14161
10 30244
11 64669
12 138374
13 295991
14 632942
15 1353515
16 2894804
17 6191317
18 13241220
19 28318162
20 60563023
21 129525173
22 277012820
23 592439104
24 1267031754
25 2709766972
26 5795308821
27 12394271806
28 26507289874

[31,67,148,322,677,1439,3086,6625,14161,30244,
 64669,138374,295991,632942,1353515,2894804,
 6191317,13241220,28318162,60563023,129525173,
 277012820,592439104,1267031754,2709766972,
 5795308821,12394271806,26507289874]

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Last modified June 16 19:05 EDT 2021. Contains 345068 sequences. (Running on oeis4.)