login

A199915 as a triangular array

1
01
111
1231
27561
7102114101
1038485135151
388913516812076211
89229441458474281147281
2297521121160414751188637260361
7521873369247725100432928001366429451

A199915 as a square array

101127103889229752
11271038892297521873
135214813544111213692
16145116845816044772
1103512047414755100
1157628111884329
1211476372800
1282601366
136429
145
1
101127103889229752
11271038892297521873
135214813544111213692
16145116845816044772
1103512047414755100
1157628111884329
1211476372800
1282601366
136429
145
1