A181215 - OEIS

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A181215 as a simple table

n	a(n)
1	16
2	256
3	2500
4	28561
5	337561
6	3857296
7	44408896
8	512750736
9	5909458129
10	68121522001
11	785456787600
12	9055597599504
13	104402987257284
14	1203692301444361
15	13877652596295601
16	159998643202876416
17	1844662908618342400

[16,256,2500,28561,337561,3857296,44408896, 512750736,5909458129,68121522001,785456787600, 9055597599504,104402987257284,1203692301444361, 13877652596295601,159998643202876416, 1844662908618342400]