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A068420 as a simple table

n a(n)
1 3
2 99
3 168
4 780
5 1836
6 2976
7 5928
8 6201
9 6468
10 13888
11 48768
12 75696
13 123216
14 227584
15 285948
16 401952
17 437664
18 1003000
19 2058732
20 3302592
21 3810624
22 4031488
23 4258496
24 4318656
25 6713664
26 14188992
27 32021613
28 93298284
29 201302016
30 226196736
31 381144320
32 514882128

[3,99,168,780,1836,2976,5928,6201,6468,13888,
 48768,75696,123216,227584,285948,401952,437664,
 1003000,2058732,3302592,3810624,4031488,4258496,
 4318656,6713664,14188992,32021613,93298284,
 201302016,226196736,381144320,514882128]

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Last modified August 30 17:27 EDT 2024. Contains 375545 sequences. (Running on oeis4.)