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A260001 as a triangular array

48
9999
284269284
641805805641
12281819253218191228
294343836157615743832943
728412412135621262013562124127284
1568332525392092368023680392093252515683
34012826161125707485055276

A260001 as a square array

48992846411228294372841568334012
9926980518194383124123252582616
284805253261571356239209112570
64118196157126202368074850
12284383135622368055276
29431241239209
728432525
15683
48992846411228294372841568334012
9926980518194383124123252582616
284805253261571356239209112570
64118196157126202368074850
12284383135622368055276
29431241239209
728432525
15683