A297524 - OEIS

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A297524 as a simple table

n	a(n)
1	1
2	123
3	2445
4	16173
5	134123
6	1995817
7	25184119
8	253060180
9	2699712781
10	31854290493
11	365376809383
12	4016844547274
13	44697066555161
14	506502839719527
15	5708954680478155
16	63850099140551870
17	715789920989332820

[1,123,2445,16173,134123,1995817,25184119, 253060180,2699712781,31854290493,365376809383, 4016844547274,44697066555161,506502839719527, 5708954680478155,63850099140551870, 715789920989332820]