login

A309852 as a triangular array

2
12
112
1332
14932
17271132
11181361332
118243119451552
129729393161542552
147218712985732071252752
1766561428720417836251402952

A309852 as a square array

21111111111
213471118294776
239278124372921876561
23113611939312984287
2313451615732041
231554207783
2525125625
2527140
2529
25
2
21111111111
213471118294776
239278124372921876561
23113611939312984287
2313451615732041
231554207783
2525125625
2527140
2529
25
2