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A309235 as a simple table

na(n)
1561
21105
31729
42465
52821
65005
76601
88911
910585
1015841
1128405
1229341
1341041
1446657
1547125
1652633
1762745
1863973
1975361
2098605
21101101

[561,1105,1729,2465,2821,5005,6601,8911,10585,
 15841,28405,29341,41041,46657,47125,52633,62745,
 63973,75361,98605,101101]