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A188647 as a triangular array

1
51
29171
169305371
98554731405651
5741982095335342891011
3346117622892026009283009103011451
1950253162299376934989186743051050601211691971
1136689567451585292150357312322211211071510013090529390052571

A188647 as a square array

15291699855741334611950251136689
117305547398209176228931622993567451585
1371405533532026009769349892921503573
1654289283009186743051232221121
1101103011050601107151001
1145211693090529
119739005
1257
1
15291699855741334611950251136689
117305547398209176228931622993567451585
1371405533532026009769349892921503573
1654289283009186743051232221121
1101103011050601107151001
1145211693090529
119739005
1257
1