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A180866 as a triangular array

1
104
31359
681027416
12521421112725
20638043635819436
31560976573454327549
45691012141280110876637064
63312921799202119251558102747981
8501764253629823030270020841326

A180866 as a square array

1103168125206315456633850
43510221438060991012921764
974211436765121417992536
16127358734128020212982
25194543110819253030
3627576615582700
4937010272084
644791326
81

A180866 as an upper right triangle

1103168125206315456633850
43510221438060991012921764
974211436765121417992536
16127358734128020212982
25194543110819253030
3627576615582700
4937010272084
644791326
81

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Last modified April 25 11:30 EDT 2024. Contains 371967 sequences. (Running on oeis4.)