login

A230859 as a triangular array

-1
-11
-12-1
-13-31
-15-64-1
-17-1210-51
-19-2123-156-1
-111-3447-3921-71
-113-5188-9061-288-1
-115-72153-189156-9036-91
-117-97250-368361-252127-4510-1

A230859 as a square array

-1-1-1-1-1-1-1-1-1-1-1
12357911131517
-1-3-6-12-21-34-51-72-97
1410234788153250
-1-5-15-39-90-189-368
162161156361
-1-7-28-90-252
1836127
-1-9-45
110
-1
-1-1-1-1-1-1-1-1-1-1-1
12357911131517
-1-3-6-12-21-34-51-72-97
1410234788153250
-1-5-15-39-90-189-368
162161156361
-1-7-28-90-252
1836127
-1-9-45
110
-1