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A206366 as a triangular array

15
151151
199063291990
2754829498329498327548
383021138045784715591113804578383021
5327971643832706752487436375248743636438327065327971
741476943004950415611978735882234089691428777

A206366 as a square array

15151199027548383021532797174147694
15163292949831380457864383270630049504156
19902949834715591175248743631197873588223
275481380457875248743634089691428777
383021643832706
5327971
15151199027548383021532797174147694
15163292949831380457864383270630049504156
19902949834715591175248743631197873588223
275481380457875248743634089691428777
383021643832706
5327971