A283229 - OEIS

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A283229 as a simple table

n	a(n)
1	0
2	49
3	3996
4	163860
5	5814342
6	188295479
7	5735340380
8	167289795994
9	4724329890393
10	130096179474238
11	3510766557493700
12	93180419391136915
13	2439005097362209956
14	63092188369767978569
15	1615585146171148850583

[0,49,3996,163860,5814342,188295479,5735340380, 167289795994,4724329890393,130096179474238, 3510766557493700,93180419391136915, 2439005097362209956,63092188369767978569, 1615585146171148850583]