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A299326 as a triangular array

2
57
81216
11182634
1424385470
20305078110142
224262102158222286
284686126206318446574
3258941742544146388941150
3666118190350510830127817902302

A299326 as a square array

25811142022283236
71218243042465866
16263850628694118
345478102126174190
70110158206254350
142222318414510
286446638830
5748941278
11501790
2302
25811142022283236
71218243042465866
16263850628694118
345478102126174190
70110158206254350
142222318414510
286446638830
5748941278
11501790
2302