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A103644 as a simple table

na(n)
01
11
24
325
41
5256
6169
71225
85476
9961
1064009
1125600
12358801
131164241
14515524
1515642025
163243601
17101284096
18239228089
19216825625
203736387876
21287336401
2227697946329
2347210598400

[1,1,4,25,1,256,169,1225,5476,961,64009,25600,
 358801,1164241,515524,15642025,3243601,101284096,
 239228089,216825625,3736387876,287336401,
 27697946329,47210598400]