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A317031 as a simple table

n a(n)
1 4
2 14
3 30
4 82
5 280
6 842
7 2591
8 8141
9 25387
10 79075
11 247002
12 771516
13 2408705
14 7522325
15 23494122
16 73374104
17 229158274
18 715707738
19 2235297120
20 6981287296
21 21804026411
22 68098596051
23 212686440221
24 664265316611
25 2074643216856
26 6479557040796

[4,14,30,82,280,842,2591,8141,25387,79075,247002,
 771516,2408705,7522325,23494122,73374104,
 229158274,715707738,2235297120,6981287296,
 21804026411,68098596051,212686440221,664265316611,
 2074643216856,6479557040796]

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Last modified May 10 05:10 EDT 2021. Contains 343748 sequences. (Running on oeis4.)