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A377336 as a triangular array

1
01
011
0101
01001
011001
0110001
01000001
010000001
0111000001
01210000001
010000000001
0100100000001

A377336 as a square array

1000000000000
111111111111
10011001200
1000001100
100000001
10000000
1000000
100000
10000
1000
100
10
1
1000000000000
111111111111
10011001200
1000001100
100000001
10000000
1000000
100000
10000
1000
100
10
1