A264253 - OEIS

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A264253 as a simple table

n	a(n)
1	89
2	1124
3	23805
4	397462
5	7467925
6	132080760
7	2411543681
8	43298007242
9	784323747917
10	14141096261412
11	255592293615989
12	4613628383189518
13	83336993543802001
14	1504783875045547408
15	27176540318951820384

[89,1124,23805,397462,7467925,132080760, 2411543681,43298007242,784323747917, 14141096261412,255592293615989,4613628383189518, 83336993543802001,1504783875045547408, 27176540318951820384]