login

A156861 as a triangular array

1
02
-114
-2-138
-3-40716
-4-8-631532
-5-13-16-7103164
-6-19-31-27-52563128
-7-26-52-62-40456127256
-8-34-80-118-110-5228119255512
-9-43-116-202-236-178-56832465111024

A156861 as a square array

10-1-2-3-4-5-6-7-8-9
21-1-4-8-13-19-26-34-43
430-6-16-31-52-80-116
873-7-27-62-118-202
161510-5-40-110-236
3231254-52-178
64635628-56
12812711983
256255246
512511
1024
10-1-2-3-4-5-6-7-8-9
21-1-4-8-13-19-26-34-43
430-6-16-31-52-80-116
873-7-27-62-118-202
161510-5-40-110-236
3231254-52-178
64635628-56
12812711983
256255246
512511
1024