login

A166548 as a triangular array

1
21
221
4641
24641
410161461
41222241661
8285670562881
28285670562881
4186414019618211244101
4207417628030823812846101

A166548 as a square array

12242448244
126410122881820
146162256286474
1414247056140176
16165670196280
162856182308
1828112238
1844128
11046
110
1
12242448244
126410122881820
146162256286474
1414247056140176
16165670196280
162856182308
1828112238
1844128
11046
110
1