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A308151 as a triangular array

1
01
011
1101
12101
231001
3322001
46211001
584121001
81044111001
1014832211001
13209532111001
182512852

A308151 as a square array

1001123458101318
1112336810142025
101122448912
1002114358
100121235
10011222
100111
10011
1001
100
10
1
1001123458101318
1112336810142025
101122448912
1002114358
100121235
10011222
100111
10011
1001
100
10
1