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A130442 as a simple table

n a(n)
1 4
2 8
3 10
4 20
5 40
6 344
7 4870
8 6892
9 17230
10 68920
11 250820
12 296440
13 317032
14 368722
15 369370
16 451426
17 472312
18 473240
19 632270
20 2326472
21 3186730
22 3429190
23 4438760
24 4670956
25 4948456
26 5509540
27 8990356
28 11817604
29 11841436
30 13094342
31 17668360

[4,8,10,20,40,344,4870,6892,17230,68920,250820,
 296440,317032,368722,369370,451426,472312,473240,
 632270,2326472,3186730,3429190,4438760,4670956,
 4948456,5509540,8990356,11817604,11841436,
 13094342,17668360]

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Last modified April 24 15:18 EDT 2024. Contains 371960 sequences. (Running on oeis4.)