A205340 - OEIS

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A205340 as a simple table

n	a(n)
1	0
2	7
3	42
4	441
5	4424
6	48335
7	542850
8	6285127
9	74286702
10	893407361
11	10894937088
12	134418087923
13	1674757658798
14	21042485711561
15	266318361927208
16	3392084001234202
17	43447635519011920
18	559277626577030221

[0,7,42,441,4424,48335,542850,6285127,74286702, 893407361,10894937088,134418087923,1674757658798, 21042485711561,266318361927208,3392084001234202, 43447635519011920,559277626577030221]

[0,7,42,441,4424,48335,542850,6285127,74286702,
 893407361,10894937088,134418087923,1674757658798,
 21042485711561,266318361927208,3392084001234202,
 43447635519011920,559277626577030221]