login

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

A280880 as a triangular array

1
01
011
0131
01461
011510101
0167520151
01632124535211
01644765663056281
011715402100126138684361
011304185264069302522730120451

A280880 as a square array

10000000000
1111111111
1341566364171130
161075214765404185
110202455621002640
115356301266930
121561386252
128842730
136120
145
1
10000000000
1111111111
1341566364171130
161075214765404185
110202455621002640
115356301266930
121561386252
128842730
136120
145
1