login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A063180 as a triangular array

1
01
012
0234
0471012
01222313842
04280115144166178
0178344500637748828870
08701698248832053820430846524830
0483094821396818132

A063180 as a square array

1000000000
112412421788704830
237228034416989482
41031115500248813968
1238144637320518132
421667483820
1788284308
8704652
4830
1000000000
112412421788704830
237228034416989482
41031115500248813968
1238144637320518132
421667483820
1788284308
8704652
4830