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A189898 as a triangular array

1
31
5491
3834243181
102708020790675301
10673084886364170676351485451
43904801939047543111716230315401710452835631
720223463881815843521711583860430469951764635805453704404914841

A189898 as a square array

1354383410270801067308488439048019390472022346388181584
19243207906364170754311171635217115838604
118675676352303154030469951764
130148517104563580545
1452835370440
1634914
184
1
1354383410270801067308488439048019390472022346388181584
19243207906364170754311171635217115838604
118675676352303154030469951764
130148517104563580545
1452835370440
1634914
184
1