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A061993 as a simple table

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 40
8 312
9 2038
10 9632
11 37248
12 120104
13 335010
14 835056
15 1897702
16 3998456
17 7907094
18 14818300
19 26512942
20 45562852
21 75580634
22 121520020
23 190031678
24 289879092
25 432420154
26 632159540
27 907376502
28 1280833348

[0,0,0,0,0,0,0,40,312,2038,9632,37248,120104,
 335010,835056,1897702,3998456,7907094,14818300,
 26512942,45562852,75580634,121520020,190031678,
 289879092,432420154,632159540,907376502,
 1280833348]

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Last modified April 18 15:48 EDT 2024. Contains 371780 sequences. (Running on oeis4.)