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A045578 as a simple table

na(n)
11
27
349
4343
52401
611179
716807
824059
978253
10117649
11168413
12547771
13823543
141178891
153834397
165764801
178252237
1811812969
1917852863
2023649997
2126840779
2234591207
2338422223
2440353607
2557765659
2682690783
2794527811
28124970041
29165549979
30178539809
31187885453

[1,7,49,343,2401,11179,16807,24059,78253,117649,
 168413,547771,823543,1178891,3834397,5764801,
 8252237,11812969,17852863,23649997,26840779,
 34591207,38422223,40353607,57765659,82690783,
 94527811,124970041,165549979,178539809,187885453]