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A183931 as a simple table

n a(n)
1 1
2 4
3 12
4 36
5 89
6 211
7 457
8 938
9 1828
10 3390
11 6009
12 10328
13 17191
14 27843
15 43962
16 67932
17 102768
18 152734
19 223096
20 320963
21 455194
22 637179
23 880985
24 1204511
25 1629348
26 2182512
27 2896434
28 3810960
29 4973139
30 6440436
31 8280160
32 10572838
33 13412773

[1,4,12,36,89,211,457,938,1828,3390,6009,10328,
 17191,27843,43962,67932,102768,152734,223096,
 320963,455194,637179,880985,1204511,1629348,
 2182512,2896434,3810960,4973139,6440436,8280160,
 10572838,13412773]

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Last modified July 30 03:01 EDT 2021. Contains 346347 sequences. (Running on oeis4.)