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A257505 as a triangular array

1
42
18123
9672165
60048090226
43203600576114487
35280302404200696360528
3225602822403456049202880378609
32659202903040317520396002520029764326410
362880003265920032256003578402419202580033604506611
43908480039916800035925120358848025401602462402880034564567013

A257505 as a square array

141896600432035280322560326592036288000439084800
21272480360030240282240290304032659200399168000
31690576420034560317520322560035925120
5221146964920396003578403588480
6483602880252002419202540160
752378297625800246240
860432336028800
9644503456
1066456
1170
13
141896600432035280322560326592036288000439084800
21272480360030240282240290304032659200399168000
31690576420034560317520322560035925120
5221146964920396003578403588480
6483602880252002419202540160
752378297625800246240
860432336028800
9644503456
1066456
1170
13