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A205894 as a triangular array

81
554476
402060202766
28522796446158815728
2033461042382147694261169489630
14483001354445634564494260102686120848511044
103172341769946928044263801076391970464115072613904662913944

A205894 as a square array

81554402028522203346144830010317234
476602079644104238213544456176994692
276661588147694234564494804426380
15728611694260102681076391970
896306120848464115072
51104461390466
2913944
81554402028522203346144830010317234
476602079644104238213544456176994692
276661588147694234564494804426380
15728611694260102681076391970
896306120848464115072
51104461390466
2913944