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A105619 as a triangular array

1
-21
-2-41
-10-2-61
-74-10-2-81
-706-74-10-2-101
-8162-706-74-10-2-121
-110410-8162-706-74-10-2-141
-1708394-110410-8162-706-74-10-2-161
-29752066-1708394-110410-8162-706-74-10-2-181

A105619 as a square array

1-2-2-10-74-706-8162-110410-1708394-29752066
1-4-2-10-74-706-8162-110410-1708394
1-6-2-10-74-706-8162-110410
1-8-2-10-74-706-8162
1-10-2-10-74-706
1-12-2-10-74
1-14-2-10
1-16-2
1-18
1
1-2-2-10-74-706-8162-110410-1708394-29752066
1-4-2-10-74-706-8162-110410-1708394
1-6-2-10-74-706-8162-110410
1-8-2-10-74-706-8162
1-10-2-10-74-706
1-12-2-10-74
1-14-2-10
1-16-2
1-18
1