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A210549 as a triangular array

1
12
134
1398
13102516
1310336532
13103410416164
131034115311385128
131034116381886897256
131034116395122424212049512
131034116396133437966388

A210549 as a square array

11111111111
2333333333
4910101010101010
825333434343434
1665104115116116116
32161311381395396
6438588612241334
12889724213796
25620496388
512
11111111111
2333333333
4910101010101010
825333434343434
1665104115116116116
32161311381395396
6438588612241334
12889724213796
25620496388
512