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A296997 as a simple table

n a(n)
1 0
2 4
3 78
4 544
5 2260
6 7068
7 18298
8 41472
9 85032
10 161300
11 287430
12 486624
13 789308
14 1234604
15 1871730
16 2761728
17 3979088
18 5613732
19 7772862
20 10583200
21 14193060
22 18774844
23 24527338
24 31678464
25 40487800
26 51249588
27 64295478
28 79997792
29 98772492
30 121082700
31 147441890
32 178417664

[0,4,78,544,2260,7068,18298,41472,85032,161300,
 287430,486624,789308,1234604,1871730,2761728,
 3979088,5613732,7772862,10583200,14193060,
 18774844,24527338,31678464,40487800,51249588,
 64295478,79997792,98772492,121082700,147441890,
 178417664]

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Last modified April 24 10:11 EDT 2024. Contains 371935 sequences. (Running on oeis4.)