login

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

A191730 as a triangular array

1
23
475
917126
224229148
5410472341910
13425917984472411
334647447209117592713
83416171117522292147673215
2084404227921304729367167793716
5209101046979

A191730 as a square array

1249225413433483420845209
3717421042596471617404210104
5122972179447111727926979
61434842095221304
81947117292729
102459147367
112767167
133279
1537
16
1249225413433483420845209
3717421042596471617404210104
5122972179447111727926979
61434842095221304
81947117292729
102459147367
112767167
133279
1537
16