A263514 - OEIS

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A263514 as a simple table

n	a(n)
1	15
2	160
3	2076
4	25968
5	331130
6	4213002
7	53712998
8	684799391
9	8732881192
10	111369466097
11	1420333983945
12	18114184500130
13	231020023102857
14	2946329450622616
15	37576249111921443
16	479231893077739510

[15,160,2076,25968,331130,4213002,53712998, 684799391,8732881192,111369466097,1420333983945, 18114184500130,231020023102857,2946329450622616, 37576249111921443,479231893077739510]