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A049353 as a triangular array

1
51
30151
210195301
16802550675501
1512034830140251725751
1512005027402872805197536751051
166320076923005961060148270515120069301401
1995840012474000012691350041545980

A049353 as a square array

1530210168015120151200166320019958400
1151952550348305027407692300124740000
130675140252872805961060126913500
150172551975148270541545980
1753675151200
11056930
1140
1
1530210168015120151200166320019958400
1151952550348305027407692300124740000
130675140252872805961060126913500
150172551975148270541545980
1753675151200
11056930
1140
1