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A134482 as a triangular array

1
22
334
4456
55678
6678910
7789101112
8891011121314
9910111213141516
10101112131415161718
1111121314151617181920
121213141516

A134482 as a square array

123456789101112
23456789101112
45678910111213
67891011121314
89101112131415
10111213141516
1213141516
14151617
161718
1819
20
123456789101112
23456789101112
45678910111213
67891011121314
89101112131415
10111213141516
1213141516
14151617
161718
1819
20