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A057966 as a triangular array

1
15615
141962730140
984256283920291201050
575789762214576034070402457006951
2994106752143947440029527680031941000180726042525
14271908851282337935680211122912003045042000258438180

A057966 as a square array

115614196984256575789762994106752142719088512
15273028392022145760143947440082337935680
14029120340704029527680021112291200
1050245700319410003045042000
69511807260258438180
42525
115614196984256575789762994106752142719088512
15273028392022145760143947440082337935680
14029120340704029527680021112291200
1050245700319410003045042000
69511807260258438180
42525