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A018210 as a simple table

n a(n)
0 1
1 4
2 16
3 44
4 110
5 236
6 472
7 868
8 1519
9 2520
10 4032
11 6216
12 9324
13 13608
14 19440
15 27192
16 37389
17 50556
18 67408
19 88660
20 115258
21 148148
22 188552
23 237692
24 297115
25 368368
26 453376
27 554064
28 672792
29 811920
30 974304
31 1162800
32 1380825
33 1631796

[1,4,16,44,110,236,472,868,1519,2520,4032,6216,
 9324,13608,19440,27192,37389,50556,67408,88660,
 115258,148148,188552,237692,297115,368368,453376,
 554064,672792,811920,974304,1162800,1380825,
 1631796]

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Last modified May 24 00:57 EDT 2018. Contains 304500 sequences. (Running on oeis4.)