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A007484 as a simple table

na(n)
02
17
225
389
4317
51129
64021
714321
851005
9181657
10646981
112304257
128206733
1329228713
14104099605
15370756241
161320467933
174702916281
1816749684709
1959654886689
20212464029485
21756701861833
222695033644469
239598504657073
2434185581260157
25121753753094617
26433632421804165

[2,7,25,89,317,1129,4021,14321,51005,181657,
 646981,2304257,8206733,29228713,104099605,
 370756241,1320467933,4702916281,16749684709,
 59654886689,212464029485,756701861833,
 2695033644469,9598504657073,34185581260157,
 121753753094617,433632421804165]