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A121685 as a triangular array

2
41
842
1612122
323248164
648016080405
1281924803202406010
25644813441120112042014014
51210243584358444802240112022428
1024230492161075216128100806720201650442

A121685 as a square array

2481632641282565121024
1412328019244810242304
21248160480134435849216
216803201120358410752
4402401120448016128
560420224010080
1014011206720
142242016
28504
42
2481632641282565121024
1412328019244810242304
21248160480134435849216
216803201120358410752
4402401120448016128
560420224010080
1014011206720
142242016
28504
42