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A206685 as a triangular array

81
306306
140417281404
5352979297925352
2433655836890225583624336
9369631773664514464514431773693696
42201618093245747676742346457476761809324422016
1639296103006084187659284549024

A206685 as a square array

813061404535224336936964220161639296
3061728979255836317736180932410300608
1404979289022645144574767641876592
535255836645144742346484549024
243363177365747676
936961809324
422016
813061404535224336936964220161639296
3061728979255836317736180932410300608
1404979289022645144574767641876592
535255836645144742346484549024
243363177365747676
936961809324
422016