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A254101 as a triangular array

1
31
115
311237
71711741
95259520361
513591497119365
32977112238511823547
133543115527133731913673281
15191325768939520057655164034921
11111331138510334739120295741615129525

A254101 as a square array

1313795313151
11111751329351911
52312559774313113
7179514911115257311
4120371223527689385
611985113373951033
365182331920054739
5471367765512029
3281164035741
49216151
29525
1313795313151
11111751329351911
52312559774313113
7179514911115257311
4120371223527689385
611985113373951033
365182331920054739
5471367765512029
3281164035741
49216151
29525