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A207543 as a triangular array

1
03
015
0057
001149
00073011
0001275513
00009779115
000014418214017
000001115637820419
0000016545071428521
0

A207543 as a square array

100000000000
3100000000
551000000
714710000
930279100
11557744111
139118215665
15140378450
17204714
19285
21
100000000000
3100000000
551000000
714710000
930279100
11557744111
139118215665
15140378450
17204714
19285
21