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A286237 as a triangular array

1
21
403
7203
1100010
1645003
220000021
2970500010
37080000021
46110014000010
5600000000055
6716128050000010
790000000000078
922200002700000021
10601701900000000036

A286237 as a square array

124711162229374656677992106
10204070110160220
300500800120017
300050008000
10000014000019
3000005000
21000000270
100000000
21000000
1000000
550000
10000
7800
210
36
124711162229374656677992106
10204070110160220
300500800120017
300050008000
10000014000019
3000005000
21000000270
100000000
21000000
1000000
550000
10000
7800
210
36