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A081514 as a triangular array

1
00
123
1236
123612
123468
12346824
12345101520
123467122128
12345615202440
123456812152440
12345681012152430
1234569101218203060

A081514 as a square array

1011111111111
022222222222
33333333333
6644444444
1266565555
881076666
24151215889
202120121010
2824151212
40241518
402420
3030
60
1011111111111
022222222222
33333333333
6644444444
1266565555
881076666
24151215889
202120121010
2824151212
40241518
402420
3030
60