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A260687 as a triangular array

1
22
6159
2410414464
12077017751750625
72062642088033480259207776
504056196250096571095708295453789117649
4032055411231270409433088164864001674444891750402097152
362880597326441229324156498804

A260687 as a square array

12624120720504040320362880
2151047706264561965541125973264
9144177520880250096312704041229324
641750334805710959433088156498804
6252592070829516486400
777645378916744448
1176499175040
2097152
12624120720504040320362880
2151047706264561965541125973264
9144177520880250096312704041229324
641750334805710959433088156498804
6252592070829516486400
777645378916744448
1176499175040
2097152