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A105423 as a simple table

n a(n)
0 1
1 0
2 3
3 3
4 9
5 15
6 31
7 57
8 108
9 199
10 366
11 666
12 1205
13 2166
14 3873
15 6891
16 12207
17 21537
18 37859
19 66327
20 115842
21 201743
22 350412
23 607140
24 1049545
25 1810428
26 3116655
27 5355219
28 9185349
29 15728547
30 26890375
31 45904773
32 78253896
33 133221079

[1,0,3,3,9,15,31,57,108,199,366,666,1205,2166,
 3873,6891,12207,21537,37859,66327,115842,201743,
 350412,607140,1049545,1810428,3116655,5355219,
 9185349,15728547,26890375,45904773,78253896,
 133221079]

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Last modified May 21 07:22 EDT 2022. Contains 353889 sequences. (Running on oeis4.)