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A240769 as a triangular array

1
21
143
4321
32187
218765
1876543
87654321
76543211615
65432116151413
54321161514131211
4321161514131211109
32

A240769 as a square array

1214321876543
143218765432
3218765432
187654321
765432116
543211615
321161514
116151413
15141312
131211
1110
9
1214321876543
143218765432
3218765432
187654321
765432116
543211615
321161514
116151413
15141312
131211
1110
9