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A291240 as a simple table

n a(n)
0 0
1 0
2 2
3 0
4 6
5 3
6 12
7 18
8 24
9 63
10 66
11 173
12 222
13 438
14 722
15 1146
16 2142
17 3213
18 5958
19 9327
20 16210
21 26898
22 44400
23 75875
24 123252
25 210240
26 344160
27 578052
28 958200
29 1588404
30 2650008
31 4370292
32 7285684
33 12022704
34 19960488
35 33008505
36 54594504
37 90368550
38 149168350

[0,0,2,0,6,3,12,18,24,63,66,173,222,438,722,1146,
 2142,3213,5958,9327,16210,26898,44400,75875,
 123252,210240,344160,578052,958200,1588404,
 2650008,4370292,7285684,12022704,19960488,
 33008505,54594504,90368550,149168350]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)