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A140978 as a triangular array

4
99
161616
25252525
3636363636
494949494949
64646464646464
8181818181818181
100100100100100100100100100
121121121121121121121121121121

A140978 as a square array

49162536496481100121
9162536496481100121
162536496481100121
2536496481100121
36496481100121
496481100121
6481100121
81100121
100121
121
49162536496481100121
9162536496481100121
162536496481100121
2536496481100121
36496481100121
496481100121
6481100121
81100121
100121
121