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A109954 as a triangular array

1
-31
6-51
-1015-71
15-3528-91
-2170-8445-111
28-126210-16566-131
-36210-462495-28691-151
45-330924-12871001-455120-171
-55495-17163003-30031820-680153-191
66-7153003-64358008-61883060-969190-211

A109954 as a square array

1-36-1015-2128-3645-5566
1-515-3570-126210-330495-715
1-728-84210-462924-17163003
1-945-165495-12873003-6435
1-1166-2861001-30038008
1-1391-4551820-6188
1-15120-6803060
1-17153-969
1-19190
1-21
1
1-36-1015-2128-3645-5566
1-515-3570-126210-330495-715
1-728-84210-462924-17163003
1-945-165495-12873003-6435
1-1166-2861001-30038008
1-1391-4551820-6188
1-15120-6803060
1-17153-969
1-19190
1-21
1