login

A187617 as a triangular array

1
11
121
1551
11336131
134281281341
189224567282245891
123318061167089167089180612331
161014560142131331298881642131331456016101

A187617 as a square array

111111111
125133489233610
1536281224518061145601
11328167281670894213133
134224516708912988816
189180614213133
1233145601
1610
1
111111111
125133489233610
1536281224518061145601
11328167281670894213133
134224516708912988816
189180614213133
1233145601
1610
1