login

A138028 as a triangular array

1
11
121
1341
14981
151211
1626831
17312261
184261711
1963134221
11852711651
111741476111
1111631232521
11111528111141

A138028 as a square array

11111111111111
1234567891111
149123468111
18261235711
1182612461
132137135
16741412
1121728
126631
15121
1151
121
14
1
11111111111111
1234567891111
149123468111
18261235711
1182612461
132137135
16741412
1121728
126631
15121
1151
121
14
1