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A203564 as a triangular array

3
33
393
3993
33387333
353177177533
318399356739931833
3395108333261332613108333953
312493561951390325775135139033561912493
33141219873734345139612503396125037343451

A203564 as a square array

3333333333
399335318339512493141
39871779931083335619219873
3331775673326135139037343451
35399332613257751339612503
31831083351390339612503
3395356197343451
31249
3
3333333333
399335318339512493141
39871779931083335619219873
3331775673326135139037343451
35399332613257751339612503
31831083351390339612503
3395356197343451
31249
3