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A300350 as a triangular array

0
11
121
2662
3159153
5372626375
890575857908
1322313315215213322313
2155030632530632530655021
341355709729729729729709135534
553341164216091496137114961609

A300350 as a square array

011235813213455
12615379022355013553341
16926571333067091642
21526581523257291609
337571523067291496
5901333257291371
82233067291496
135507091609
211355
34
011235813213455
12615379022355013553341
16926571333067091642
21526581523257291609
337571523067291496
5901333257291371
82233067291496
135507091609
211355
34