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A307505 as a triangular array

1
01
001
0002
00101
010002
1000102
00000005
000010401
0100040102
10105000102
000402010005
1050002010402

A307505 as a square array

1000001000101
100010001000
10100000105
2000000040
101010500
20004020
2040002
501010
10101
2000
204
50
2
1000001000101
100010001000
10100000105
2000000040
101010500
20004020
2040002
501010
10101
2000
204
50
2