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A161642 as a triangular array

1
11
111
1331
12221
15101051
131551531
1773535771
14282814282841
193684126126843691
15153021042210301551

A161642 as a square array

11111111111
1132537495
13210157283615
1210535288430
15153514126210
1372812642
172884210
143630
1915
15
1
11111111111
1132537495
13210157283615
1210535288430
15153514126210
1372812642
172884210
143630
1915
15
1