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A290776 as a triangular array

1
01
013
01716
011263125
01181627221296
012534125651014016807
0133636718047100169137262144
014210921733516828598756732715764782969
015217643775050954543640172331593672043092100000000

A290776 as a square array

1000000000
111111111
37121825334252
166316234163610921764
125722256571801733537750
12961014047100168285509545
168071691379875674364017
262144327157623315936
478296972043092
100000000
1000000000
111111111
37121825334252
166316234163610921764
125722256571801733537750
12961014047100168285509545
168071691379875674364017
262144327157623315936
478296972043092
100000000