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A254145 as a simple table

n a(n)
0 28
1 84
2 336
3 1596
4 8400
5 47244
6 278256
7 1695036
8 10592400
9 67518444
10 437200176
11 2867080476
12 18997064400
13 126948964044
14 854359702896
15 5783851121916
16 39350309552400
17 268842017200044
18 1843254419626416
19 12675940450459356

[28,84,336,1596,8400,47244,278256,1695036,
 10592400,67518444,437200176,2867080476,
 18997064400,126948964044,854359702896,
 5783851121916,39350309552400,268842017200044,
 1843254419626416,12675940450459356]

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Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)