A125424 - OEIS

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A125424 as a simple table

n	a(n)
0	1
1	12
2	124
3	1188
4	12356
5	129492
6	1361746
7	14331126
8	150856188
9	1588078260
10	16718137334
11	175997231290
12	1852781990558
13	19504865161846
14	205334357806520
15	2161624764528348
16	22756160755947020
17	239561861905201388

[1,12,124,1188,12356,129492,1361746,14331126, 150856188,1588078260,16718137334,175997231290, 1852781990558,19504865161846,205334357806520, 2161624764528348,22756160755947020, 239561861905201388]