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A006561 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 5
6 13
7 35
8 49
9 126
10 161
11 330
12 301
13 715
14 757
15 1365
16 1377
17 2380
18 1837
19 3876
20 3841
21 5985
22 5941
23 8855
24 7297
25 12650
26 12481
27 17550
28 17249
29 23751
30 16801
31 31465
32 30913
33 40920
34 40257
35 52360
36 46981
37 66045
38 64981
39 82251
40 80881
41 101270

[0,0,0,1,5,13,35,49,126,161,330,301,715,757,1365,
 1377,2380,1837,3876,3841,5985,5941,8855,7297,
 12650,12481,17550,17249,23751,16801,31465,30913,
 40920,40257,52360,46981,66045,64981,82251,80881,
 101270]

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Last modified February 23 09:58 EST 2018. Contains 299536 sequences. (Running on oeis4.)