A016324 - OEIS

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A016324 as a simple table

n	a(n)
0	1
1	23
2	379
3	5483
4	74227
5	966635
6	12282883
7	153544091
8	1897874803
9	23272609547
10	283754322787
11	3445398949499
12	41707911082579
13	503763046196459
14	6074569573223491
15	73159552048508507
16	880297079110607155

[1,23,379,5483,74227,966635,12282883,153544091, 1897874803,23272609547,283754322787,3445398949499, 41707911082579,503763046196459,6074569573223491, 73159552048508507,880297079110607155]