A170213 - OEIS

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A170213 as a simple table

n	a(n)
0	1
1	12
2	132
3	1452
4	15972
5	175692
6	1932612
7	21258732
8	233846052
9	2572306572
10	28295372292
11	311249095212
12	3423740047332
13	37661140520652
14	414272545727172
15	4556998002998892
16	50126978032987812
17	551396758362865932

[1,12,132,1452,15972,175692,1932612,21258732, 233846052,2572306572,28295372292,311249095212, 3423740047332,37661140520652,414272545727172, 4556998002998892,50126978032987812, 551396758362865932]