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A225209 as a simple table

na(n)
11
2249
38537
4186073
53427545
658664153
7970097881
815776875737
9254486643929
104088295982297
1165545039643865
121049779971687641
1316804957869966553
14268947166998693081
154303697458594972889
1668863501862374868185

[1,249,8537,186073,3427545,58664153,970097881,
 15776875737,254486643929,4088295982297,
 65545039643865,1049779971687641,16804957869966553,
 268947166998693081,4303697458594972889,
 68863501862374868185]