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A302151 as a simple table

n a(n)
1 4
2 1
3 4
4 5
5 11
6 34
7 88
8 271
9 798
10 2368
11 7071
12 21110
13 63163
14 188980
15 565622
16 1693239
17 5069374
18 15178832
19 45451143
20 136102762
21 407567006
22 1220499079
23 3654940301
24 10945255479
25 32777313021
26 98157159720
27 293948595170
28 880280943171

[4,1,4,5,11,34,88,271,798,2368,7071,21110,63163,
 188980,565622,1693239,5069374,15178832,45451143,
 136102762,407567006,1220499079,3654940301,
 10945255479,32777313021,98157159720,293948595170,
 880280943171]

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Last modified January 25 23:56 EST 2022. Contains 350572 sequences. (Running on oeis4.)