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A199400 as a triangular array

1
22
4106
8385424
16130330336120
32422171030002400720
64133081062184029400194405040
12841183641414162428560031248017640040320
256126101580108537762421720390096035985601774080362880

A199400 as a square array

1248163264128256
210381304221330411812610
6543301710810636414158010
24336300021840141624853776
1202400294002856002421720
720194403124803900960
50401764003598560
403201774080
362880
1248163264128256
210381304221330411812610
6543301710810636414158010
24336300021840141624853776
1202400294002856002421720
720194403124803900960
50401764003598560
403201774080
362880