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A226418 as a simple table

na(n)
12
225
3104
4411
5968
62689
75573
812301
922398
1041891
1171784
12124195
13196235
14313967
15479501
16730157
171062596
181548604

[2,25,104,411,968,2689,5573,12301,22398,41891,
 71784,124195,196235,313967,479501,730157,1062596,
 1548604]