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A046521 as a triangular array

1
21
661
2030101
7014070141
252630420126181
92427722310924198221
3432120121201260061716286261
12870514806006036036128702860390301
486202187902917202042048751624310

A046521 as a square array

126207025292434321287048620
163014063027721201251480218790
1107042023101201260060291720
114126924600636036204204
11819817161287087516
122286286024310
126390
130
1
126207025292434321287048620
163014063027721201251480218790
1107042023101201260060291720
114126924600636036204204
11819817161287087516
122286286024310
126390
130
1