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A155174 as a simple table

n a(n)
1 4
2 12
3 112
4 220
5 840
6 1740
7 3960
8 5100
9 8580
10 9940
11 11704
12 12012
13 20604
14 21840
15 23112
16 26680
17 47740
18 61600
19 78012
20 82012
21 102604
22 103512
23 122512
24 151800
25 276024
26 289560
27 340312
28 418612
29 481180
30 501000
31 660100
32 711624
33 838512
34 901824
35 931612

[4,12,112,220,840,1740,3960,5100,8580,9940,11704,
 12012,20604,21840,23112,26680,47740,61600,78012,
 82012,102604,103512,122512,151800,276024,289560,
 340312,418612,481180,501000,660100,711624,838512,
 901824,931612]

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Last modified October 16 01:51 EDT 2019. Contains 328038 sequences. (Running on oeis4.)