login

A168561 as a triangular array

1
01
101
0201
10301
030401
1060501
040100601
10100150701
050200210801
10150350280901
0603505603601001
102107008404501101

A168561 as a square array

1010101010101
102030405060
10306010015021
1040100200350
105015035070
1060210560
107028084
1080360
109045
10100
1011
10
1
1010101010101
102030405060
10306010015021
1040100200350
105015035070
1060210560
107028084
1080360
109045
10100
1011
10
1