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A263958 as a simple table

na(n)
1509203
22554843
39203917
49545351
510645867
611942443
714608183
815627133
915811777
1016413457
1121013423
1221465637
1325792993
1430622663
1530932729
1632126257
1737996753
1840672237
1941641181
2043099781
2143773809
2247775613
2348400783
2452518187
2552992283

[509203,2554843,9203917,9545351,10645867,11942443,
 14608183,15627133,15811777,16413457,21013423,
 21465637,25792993,30622663,30932729,32126257,
 37996753,40672237,41641181,43099781,43773809,
 47775613,48400783,52518187,52992283]