login

A144221 as a triangular array

1
-1-1
11-1
-15-11
5-11111
9-11-119-1-1
-9-951-2911-1
-1-57111-29-2913-11
-15113-111-111169-55111
-31113113-559449-55-5517-1

A144221 as a square array

1-11-159-9-1-15-31
-115-11-11-9-57113113
-1-11-1151111-111113
119-29-29-111-559
1-11-29169449
-1113-55-55
-1-11-55
1117
1-1
1-11-159-9-1-15-31
-115-11-11-9-57113113
-1-11-1151111-111113
119-29-29-111-559
1-11-29169449
-1113-55-55
-1-11-55
1117
1-1