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A239927 as a triangular array

1
01
001
0001
00101
000201
0000301
00010401
000030501
0001060601
000030100701
0000070150801
000020140210901
00000702502801001
0000101704103601101

A239927 as a square array

100000000000000
10000000000000
1010000000000
102010100000
10303030201
1040607070
105010014017
1060150250
107021041
1080280
109036
10100
1011
10
1
100000000000000
10000000000000
1010000000000
102010100000
10303030201
1040607070
105010014017
1060150250
107021041
1080280
109036
10100
1011
10
1