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A027477 as a triangular array

1
31
23121
330215301
760457001035601
2566202124644567535351051
1192326010645152258220924108097301681
72952488069156009218396226819661649970200230582521

A027477 as a square array

1323330760425662011923260729524880
112215570021246410645152691560092
1301035456752582209183962268
160353524108019661649
11059730970200
116823058
1252
1
1323330760425662011923260729524880
112215570021246410645152691560092
1301035456752582209183962268
160353524108019661649
11059730970200
116823058
1252
1